NON-EXCLUSIVE PATENT LICENSE AGREEMENT
                                FOR
                     DISC PRODUCT MANUFACTURERS



       This AGREEMENT is made effective this 1st day of June, 1996, by and 
between DISCOVISION ASSOCIATES, a joint venture subject to the State of 
California partnership law, having a place of business at 2355 Main Street, 
Suite 200, Irvine, California 92714, United States of America (hereinafter 
referred to as DVA) and FUTURE MEDIA PRODUCTIONS, a California corporation, 
having a place of business at 25136 Anza Drive, Valencia, California 91355 
(hereinafter referred to as LICENSEE), who agree as follows:
       
SECTION 1.0  RECITALS

1.1    DVA has the right to grant licenses under certain DVA-owned United 
       States and Canadian patents relating to the design, manufacture, 
       and sale of optical disc products such as compact discs and 
       CD-ROM discs.

1.2    DVA is prepared to grant non-exclusive licenses under such patents on
       reasonable terms and conditions to financially sound and commercially
       responsible applicants.

1.3    LICENSEE has produced and/or sold and intends to continue producing 
       and/or selling products which may embody patented inventions covered 
       by such DVA patents or which may be made using apparatus or methods 
       which may embody such patented inventions. These products are 
       manufactured by: (1) LICENSEE; (2) manufacturers licensed by DVA who 
       do not pay United States and Canadian royalty rates; (3) 
       manufacturers licensed by DVA who pay United States and Canadian 
       royalty rates; or (4) manufacturers not licensed by DVA. As 
       specified later in this Agreement, the amount of any royalty to be 
       paid by LICENSEE to DVA depends partly on the source of the product.

1.4    DVA is offering LICENSEE, as an option herein, a license under 
       individual ones of its patents, the availability of such license 
       under any one or more of DVA's patents being in no way conditioned on
       the need for LICENSEE to take a license under any other DVA's 
       patents.



1.5    LICENSEE has determined that its business interests will be best served
       by taking a license under the terms and conditions of this Agreement. 
       In so doing, LICENSEE understands that if less than all DVA patents 
       are licensed, then licenses under additional DVA patents may be 
       required before LICENSEE can make or sell optical disc products free 
       and clear of all claims of patent infringement by DVA. Information 
       regarding infringement of additional DVA patents may be obtained by 
       using the factory inspection provisions of Section 10.0 herein.

SECTION 2.0 DEFINITIONS

2.1    "Information Storage Medium" (Media) shall mean any record carrier 
       primarily designed to store and/or record any type of information.

2.2    "Disc(s)" shall mean any pre-recorded, non-recordable and non-erasable
       Information Storage Medium in the shape of a disc and having 
       information recorded thereon in one or more information bearing 
       layers, which information is recoverable using optical detection 
       means.

2.3    "Digital Disc(s)" shall mean a Disc having pre-recorded thereon 
       digitally encoded information. Digital Discs shall be limited to 
       Discs commonly known as Compact Disc Digital Audio Discs or CD 
       Digital Audio Discs, Compact Disc Single Discs or CD Single Discs, 
       Compact Disc Read Only Memory Discs or CD-ROM Discs, Compact 
       Disc-Graphics Discs or CD-G Discs, Compact Disc-Interactive Discs or 
       CD-I Discs, and Pre-Recorded Mini Discs.

2.4    "Compact Disc Digital Audio Disc(s)" or "CD Digital Audio Disc(s)" 
       shall mean a Digital Disc having pre-recorded thereon audio 
       entertainment information. A CD Digital Audio Disc is defined herein 
       according to the definition in a specification entitled "Compact 
       Disc Digital Audio System Description" published by N.V. Philips 
       Consumer Electronics B.V. and Sony Corporation and commonly referred 
       to as the "Red Book." CD Digital Audio Discs shall mean Digital 
       Discs commonly known as compact discs (CD's).

2.5    "Compact Disc Single Disc(s)" or "CD Single Disc(s)" shall mean a CD 
       Digital Audio Disc, either three inches (3") or five inches (5") in 
       diameter, having pre-recorded thereon twenty (20) minutes or less of 
       audio entertainment information.

2.6    "Compact Disc Read Only Memory Disc(s)" or "CD-ROM Disc(s)" shall mean
       a Digital Disc having pre-recorded thereon text files, data files, 
       image files, computer program files, and the like, primarily 
       intended for computer-related,

                            Page 2 of 23


       database-related and/or multimedia-related usage. A CD-ROM Disc is 
       defined herein according to the definition in a specification 
       entitled "Compact Disc Read Only Memory (CD-ROM) System Description" 
       published by N.V. Philips Consumer Electronics B.V. and Sony 
       Corporation and commonly referred to as the "Yellow Book." CD-ROM 
       Discs include CD-ROM/XA discs.

2.7    "Compact Disc-Interactive Disc(s)" or "CD-I Disc(s)" shall mean a 
       Digital Disc having pre-recorded thereon audio, video and program 
       control data for interactive use with a human user by means of 
       computer apparatus. A CD-I Disc is defined herein according to the 
       definition in a specification entitled "Compact Disc Interactive 
       Media Full Functional Specification" published by N.V. Philips 
       Consumer Electronics B.V. and Sony Corporation and commonly referred 
       to as the "Green Book."

2.8    "Compact Disc-Graphics Disc(s)" or "CD-G Disc(s)" shall mean a Digital
       Disc having pre-recorded thereon graphics information comprised of 
       discrete still pictures or graphic images having no user perceivable 
       motion.

2.9    "Pre-Recorded Mini Disc(s)" shall mean a Digital Disc having a diameter
       of 65 millimeters or less, that is played back at constant linear 
       velocity, capable of storing not more the 150 megabytes of 
       information and defined in a specification published by Sony 
       Corporation and commonly referred to as the "Rainbow Book."

2.10   "Video Disc(s)" shall mean a Disc having pre-recorded thereon 
       information intended to produce visual images having user 
       perceivable motion. Video Discs shall include, but are not limited 
       to, Discs commonly known as laser discs (LD's), compact disc-video 
       (CD-V) discs, and digital video/versatile discs (DVD's) and 
       successors to DVD's.

2.11   "Licensed Product(s)" shall mean only Digital Discs as defined in this
       Agreement.

2.12   "Master Disc(s)" shall mean any recordable Information Storage Medium
       primarily designed for use in any process to eventually produce a  
       Disc by any transfer process whereby the information from all tracks 
       of a Master Disc is transferred substantially simultaneously to an 
       Information Storage Medium to form a Disc. 

                                  Page 3 of 23



2.13  "Mastering Apparatus" shall mean any instrumentality, or aggregate of 
      instrumentalities, primarily designed to produce a Master Disc.

2.14  "Matrix" shall mean any element which transfers information from a 
      Master Disc to an Information Storage Medium to form a Disc. Matrix 
      shall include, but is not limited to, elements commonly known as 
      fathers, mothers, and stampers.

2.15  "Matrixing Apparatus" shall mean any instrumentality, or aggregate of 
      instrumentalities, primarily designed to produce a Matrix having any 
      type of information recorded thereon corresponding to information on a 
      Master Disc.

2.16  "Replication Apparatus" shall mean any instrumentality, or aggregate of 
      instrumentalities, primarily designed to transfer any type of 
      information from a Matrix or a Master Disc to a multiplicity of 
      Information Storage Media and thereby to fabricate a multiplicity of 
      Discs having identical information recorded thereon.

2.17  "Manufacturing Apparatus" shall mean apparatus for use in the 
      fabrication of Discs, including apparatus used in performing quality 
      assurance procedures and/or testing of Discs. Manufacturing Apparatus 
      shall include, but is not limited to, any one or more of the following: 
      Mastering Apparatus; Master Disc; Matrixing Apparatus; Matrix; and 
      Replication Apparatus.

2.18  "Manufacturing Process(es)" shall mean any method or process, including 
      related apparatus, used in the fabrication of Discs, including process 
      steps directed to quality assurance procedures and/or testing of Discs.

2.19 "DVA Patent(s)" shall mean all United States and Canadian patents owned 
      by DVA as of the effective date of this Agreement, including utility 
      models and design patents, and any United States and Canadian patents, 
      including utility models and design patents, issuing from pending United 
      States and Canadian patent applications owned by DVA as of the effective 
      date of this Agreement, directed to Licensed Products and/or any 
      Manufacturing Apparatus and/or any Manufacturing Process, under which 
      patents and patent applications (as well as divisionals, continuations, 
      continuation-in-part applications, reissues, reexaminations and 
      extensions thereof) DVA has, as of the effective date of this Agreement, 
      the right to grant licenses to LICENSEE of the scope granted herein, 
      PROVIDED HOWEVER that such grant, or the exercise of rights under such 
      grant, will not result in the payment of royalties or other 
      consideration by DVA to third

                                  Page 4 of 23


      parties (except for payments to Affiliates of DVA and payments to third 
      parties for inventions made by said third parties while employed by DVA 
      or any of its Affiliates). United States and Canadian patents relating 
      to Licensed Products and/or their manufacture which have issued and are 
      licensable by DVA are set forth in Appendix A. DVA shall provide 
      LICENSEE on at least an annual basis an updated version of Appendix A 
      which includes any new patent to be added to Appendix A and which 
      indicates the expiration of a previously listed patent by the addition 
      of the letter "E" following the patent number.

2.20  "Licensed Patent(s)" shall mean those DVA-owned United States and 
      Canadian patents listed in Appendix B of this Agreement, these being 
      the DVA Patent(s) under which LICENSEE has agreed to take a license. 
      Any DVA Patent(s) listed in Appendix A may be added to Appendix B and 
      thereby become a Licensed Patent by written agreement of the parties.

2.21  "Transfer(s)" (Transferred) as used herein shall mean (i) sell and/or 
      sold, (ii) deliver(ed) to others (including for export) other than by 
      sale, regardless of the basis of compensation, if any, (for example, by 
      consignment, by gift or by transshipment through an intermediate country 
      or territory such as Switzerland, Hong Kong, et cetera) and/or (iii) 
      sell (sold) in combination with other products.

2.22  "Type Number" shall mean any combination of numbers, letters, and/or 
      words used to identify a particular type or model of Licensed Product.

2.23  "Affiliate(s)" shall mean any corporation, company, or other business 
      entity controlled by a party to this Agreement. For this purpose, 
      control means direct or indirect beneficial ownership of greater than 
      fifty percent (50%) of the voting securities or greater than fifty 
      percent (50%) interest in the income of such corporation, company, or 
      other business entity.

2.24  "Arm's Length Trade" shall mean a sale, lease or other commercial 
      transaction between unaffiliated parties having an adverse economic 
      interest. After completion of an Arm's Length Trade, a party thereto 
      will derive no further economic benefit from subsequent transactions by 
      another party thereto with respect to the goods involved in such Arm's 
      Length Trade.

2.25  "Manufacturer's Net Selling Price" shall mean the invoice price after 
      discounts actually allowed for a Licensed Product sold in Arm's Length 
      Trade by LICENSEE or its Affiliate, such price not to include: (1) 
      packaging costs incurred by LICENSEE for such Licensed Product; (2) 
      insurance fees and 

                                 Page 5 of 23


      packing and transportation charges incurred by LICENSEE and invoiced 
      separately to a third party; (3) duties and sales taxes actually 
      incurred and paid by LICENSEE in connection with delivery of such 
      Licensed Product; (4) the cost of any copyright license fee paid by 
      LICENSEE in respect of information stored on the Licensed Product; and 
      (5) pre-mastering charges incurred by LICENSEE and necessary for the 
      manufacture of the Licensed Product, which pre-mastering charges are 
      invoiced separately to a third party. Manufacturer's Net Selling Price 
      shall include all mastering charges, including but not limited to 
      charges incurred for Manufacturing Apparatus used in the mastering 
      process, whether such mastering charges are incurred as the result of 
      LICENSEE's own Manufacturing Apparatus, or from mastering charges 
      invoiced separately to a third party, such as LICENSEE's purchase of a 
      stamper from a third party. In respect of a Licensed Product used or 
      leased by LICENSEE or its Affiliate or sold or Transferred in other 
      than Arm's Length Trade by LICENSEE or its Affiliate, the 
      Manufacturer's Net Selling Price shall be deemed to be equal to the 
      average Manufacturer's Net Selling Price as defined above for the 
      same or equivalent Licensed Product sold in Arm's Length Trade during 
      the then current accounting period. In the event there are no sales in 
      Arm's Length Trade during an accounting period, DVA and LICENSEE shall 
      attempt to agree upon an amount to be regarded as the Manufacturer's 
      Net Selling Price for such accounting period. If DVA and LICENSEE do 
      not so agree, then Manufacturer's Net Selling Price shall mean the 
      actual selling price to an ultimate consumer. If a Licensed Product is 
      not separately sold and is included with other apparatus, then the 
      Manufacturer's Net Selling Price of such Licensed Product shall be the 
      Manufacturer's Net Selling Price of the equivalent Licensed Product 
      which is separately sold, or, if no such equivalent Licensed Product 
      exists, shall be, at LICENSEE's option, either: (1) the price as 
      aforesaid of such other apparatus multiplied by the ratio of the 
      Manufacturing Cost of such Licensed Product to the Manufacturing Cost 
      of such other apparatus; or (2) one hundred and fifty percent (150%) of 
      the Manufacturer's Net Selling Price of that part of the apparatus that 
      constitutes the Licensed Product.

2.26  "Manufacturing Cost" shall mean total cost of direct materials, direct 
      and indirect factory labor and factory overhead determined in 
      accordance with sound accounting principles.
                                       
                                 Page 6 of 23



SECTION 3.0 NON-EXCLUSIVE LICENSE GRANT

3.1  DVA grants to LICENSEE a non-exclusive, royalty bearing license under 
     the Licensed Patent(s):

     3.1.1  to make, have made, use, rent, lease, sell and/or Transfer 
            Licensed Products in the United States of America and Canada and 
            their territories and possessions; and

     3.1.2  to make, have made, use or have used Manufacturing Apparatus and 
            to use or have used Manufacturing Processes in the United States 
            of America and Canada and their territories and possessions to 
            manufacture Licensed Products for LICENSEE.

     It is understood by LICENSEE that licenses under additional DVA 
     Patent(s) not listed in Appendix B may be required before LICENSEE can 
     make, use, rent, lease, sell and/or Transfer Licensed Products free and 
     clear of all claims of patent infringement by DVA. LICENSEE may obtain 
     from DVA a determination as to the applicability of any DVA Patent(s) 
     to LICENSEE's products by use of the factory inspection provisions of 
     Section 10.0 of this Agreement. In any event, DVA reserves the right to 
     bring a patent infringement action against LICENSEE with respect to any 
     DVA Patent(s) not listed in Appendix B.

3.2  No license is granted by DVA to LICENSEE in this Section 3.0, either 
     expressly or by implication, estoppel, or otherwise:

     3.2.1  other than under the Licensed Patent(s) listed in Appendix B;

     3.2.2  with respect to any products other than Licensed Products;

     3.2.3  to rent, lease, sell and/or Transfer any Manufacturing Apparatus; 
            or

     3.2.4  to rent, lease, sell and/or Transfer any Manufacturing Process or 
            process step thereof.

3.3  The license granted herein shall include a sublicense to LICENSEE's 
     Affiliates, identified in Appendix C, which are LICENSEE's Affiliates as 
     of the effective date of this Agreement. LICENSEE shall pay and account 
     to DVA for royalties hereunder with respect to the exercise by any 
     Affiliate of LICENSEE of the sublicense granted to it hereunder, and if 
     LICENSEE fails to make such payment or accounting, DVA reserves the right 
     to seek directly from such Affiliate any
                                       
                                 PAGE 7 OF 23


     royalties due and owing to DVA. Sublicenses will be granted to 
     additional Affiliates of LICENSEE during the term of this Agreement upon 
     receipt by DVA of written notices from LICENSEE setting forth the names 
     and addresses of such additional Affiliates to be covered by this 
     Agreement, provided each such notice is given before any sales of 
     Licensed Products by the Affiliate named therein. Each Affiliate 
     sublicensed under this Agreement shall be bound by the terms and 
     conditions of this Agreement as if it were named herein in the place of 
     LICENSEE. LICENSEE represents to DVA that it has the power to bind each 
     such Affiliate to the terms and conditions of this Agreement and agrees 
     to take whatever action is necessary to legally bind such Affiliates. 
     The sublicense granted to an Affiliate shall terminate on the date such 
     Affiliate ceases to be an Affiliate.

3.4  Except as set forth in Section 3.3, LICENSEE is expressly not granted 
     the right to sublicense third parties under this Agreement.

SECTION 4.0 RELEASE
4.1  Upon payment of the consideration set forth in Section 5.8, DVA 
     irrevocably releases LICENSEE and its Affiliates, identified in Appendix
     C, which are LICENSEE's Affiliates as of the effective date of this 
     Agreement, from any and all claims of infringement of the Licensed 
     Patent(s), which claims have been made or which might be made at any 
     time, with respect to any Licensed Products used, rented, leased, sold, 
     or otherwise Transferred by or for LICENSEE or its sublicensed
     Affiliates before the effective date of this Agreement, to the extent 
     such Licensed Products would have been licensed hereunder had they been 
     manufactured, used, rented, leased, sold, or otherwise Transferred after 
     the effective date of this Agreement. This release shall not apply to 
     any Licensed Product on which a royalty accrues after the effective date 
     of this Agreement. This release applies only to the Licensed Patent(s) 
     and does not apply to any other DVA Patent(s). LICENSEE may remain 
     liable for infringement of other DVA Patent(s).

4.2  LICENSEE expressly represents that its Affiliates identified in Appendix 
     C include all of LICENSEE's Affiliates as of the effective date of this 
     Agreement.

SECTION 5.0  ROYALTIES AND OTHER PAYMENTS
5.1  LICENSEE shall pay, as hereinafter provided, earned royalties to DVA 
     with respect to both of the following for:
                                       
                                Page 8 of 23



     5.1.1  each Licensed Product for which LICENSEE is licensed hereunder in 
            the country of manufacture; and 

     5.1.2  each Licensed Product for which LICENSEE is licensed hereunder in 
            the country of use, rental, lease, sale or Transfer.

5.2  For each Licensed Product manufactured in the United States of America 
     or Canada or their territories or possessions, no more than one royalty 
     shall be due for such Licensed Product, regardless of the number of 
     countries in which the use, distribution and sale of such Licensed 
     Product occurs.

5.3  LICENSEE shall pay to DVA a royalty as set forth below in Section 5.4 or 
     as set forth below in Section 5.5. LICENSEE's election between the 
     royalty of Section 5.4 and the royalty of Section 5.5 shall be made in 
     writing to DVA for each type of Licensed Product on or before submission 
     of the royalty report for the first accounting period for which royalty 
     is to be paid for such type of Licensed Product. This election, once 
     made, cannot be changed except as provided herein. For any given 
     accounting period, LICENSEE shall pay the same royalty for each Licensed 
     Product of the same type.
    
     If Section 5.4 is selected, and LICENSEE subsequently wishes to change 
     its royalty election, LICENSEE may change the royalty election by 
     notifying DVA in writing, on or before submission of the royalty report 
     for the next accounting period for which such royalties are to be paid, 
     of LICENSEE'S election to pay royalties pursuant to Section 5.5 herein, 
     and of the Licensed Patent(s) to be included in Appendix B.  Appendix B
     shall thereupon be amended to list the Licensed Patent(s) in accordance
     with LICENSEE's written notification, LICENSEE shall be liable for 
     royalty payments pursuant to Section 5.4 up to the date of DVA's receipt 
     of written notice of LICENSEE's change of royalty election.

     If LICENSEE is considering an election to pay royalties pursuant to 
     Section 5.5, LICENSEE may request a factory inspection in accordance 
     with Section 10.0. If Section 5.5 is selected, DVA reserves the right to 
     bring a patent infringement action against LICENSEE with respect to any 
     DVA Patent(s) not listed in Appendix B.

     The royalty election may be changed from Section 5.5 to Section 5.4 by 
     written agreement of the parties.

                                        
                                  page 9 of 23



5.4    As a first option, LICENSEE shall pay to DVA each of the following 
       royalties:

       5.4.1   For each Licensed Product which is manufactured, used, rented, 
               leased, sold and/or Transferred by or for LICENSEE and/or its 
               Affiliates, LICENSEE shall pay to DVA a royalty for:

               5.4.1.1   Digital Discs (except CD Single Discs): three cents 
                         (U.S. $0.03) per information bearing layer; and

               5.4.1.2   CD Single Discs: two cents (U.S. $0.02) per 
                         information bearing layer.

               5.4.1.3   With respect to each of the preceding Sections 5.4.1.1
                         and 5.4.1.2, LICENSEE shall have the option of paying a
                         royalty of three percent (3.0%) of the Manufacturer's 
                         Net Selling Price.

5.5    As a second option, LICENSEE shall pay to DVA for each Licensed 
       Product which is manufactured, used, rented, leased, sold and/or 
       Transferred by or for LICENSEE and/or its Affiliates, a royalty equal 
       to the sum total of the individual patent royalty rates of Licensed 
       Patent(s) as a percentage of the Manufacturer's Net Selling Price of 
       such Licensed Product, such individual rates being set forth in 
       Appendix B.

5.6    No royalties shall be paid by LICENSEE for:

       5.6.1   Licensed Products manufactured for LICENSEE by any other DVA 
               licensee, so long as the other DVA licensee has fully paid and 
               reported royalties to DVA on such Licensed Products and has 
               identified LICENSEE as the purchaser of such Licensed Products 
               in its royalty reports to DVA. If the other DVA licensee has 
               paid a partial royalty to DVA, then LICENSEE shall receive a 
               credit for that partial royalty.

       5.6.2   Licensed Products manufactured by LICENSEE for any other DVA 
               licensee, so long as the other licensee has fully paid and 
               reported royalties to DVA on such Licensed Products, and 
               LICENSEE has identified such other DVA licensee as the 
               purchaser, and both LICENSEE and such other DVA licensee have 
               both identified the other in their respective royalty reports 
               due DVA reporting such transaction.


                               Page 10 of 23



               If the other DVA licensee has paid a partial royalty to DVA, 
               then LICENSEE shall a receive credit for that partial royalty.

5.7    Lists of manufacturers that have a valid patent license agreement for 
       Licensed Products with DVA are listed in Appendix D-1 and D-2. These 
       lists will be updated annually. If LICENSEE purchases Licensed 
       Products from any manufacturer listed in Appendix D-2 (licensed 
       manufacturers not paying U.S. and Canadian royalty rates), and uses, 
       rents, leases, sells and/or Transfers such Licensed Products in the 
       United States of America or Canada or their territories or 
       possessions, then LICENSEE shall:

       5.7.1   pay to DVA a royalty of two United States cents (U.S. $0.02) 
               per information bearing layer; or

       5.7.2   submit the royalty report described in Section 6.6 to both DVA 
               and each such licensed manufacturer. If LICENSEE chooses this 
               option, DVA will demand, where appropriate, payment of the 
               owed royalties as specified in Section 5.7.1 from the licensed 
               manufacturer. If the licensed manufacturer does not pay these 
               royalties within sixty (60) days of DVA's demand, LICENSEE 
               must pay these royalties. The fact that DVA seeks payment from 
               the licensed manufacturer in no way absolves LICENSEE of 
               liability for these royalties.

5.8    LICENSEE agrees to pay DVA within sixty (60) days of the execution of 
       this Agreement, the sum of Twenty Thousand United States Dollars 
       ($20,000) as additional consideration for the release granted LICENSEE 
       in Section 4.0. This sum is not refundable and is not creditable 
       toward royalties set forth in this Section 5.0. LICENSEE and its 
       Affiliates are jointly and severally liable for this payment, and if 
       LICENSEE fails to make this payment, then DVA reserves the right to 
       seek such payment from any or all of LICENSEE's Affiliates.

Section 6.0  ACCRUALS, RECORDS AND REPORTS
6.1    Royalties shall accrue when any Licensed Product with respect to which 
       royalty payments are required by Section 5.0 of this Agreement is sold 
       (as evidenced by bill or invoice), first rented, first leased, first 
       put into use or Transferred, whether or not payment is received by 
       LICENSEE. On sales or Transfers between LICENSEE and its Affiliate for 
       resale or for further Transfer, the royalty shall accrue at the time 
       of sale or Transfer to the Affiliate.


                               Page 11 of 23



6.2    LICENSEE shall pay royalties and other sums of money due hereunder in 
       United States dollars. All royalties for an accounting period computed 
       on invoiced amounts in currencies other than United States dollars 
       shall be converted directly into United States dollars, without 
       intermediate conversions to another currency, at the currency exchange 
       rate quoted by either the United States edition of the Wall Street 
       Journal or the head office of Citibank N.A. of New York, New York at 
       the close of banking on the last business day of such accounting 
       period.

6.3    An accounting period shall end on the last day of each March, June, 
       September and December during the term of this Agreement. The first 
       accounting period under this Agreement shall be for a period 
       commencing as of the effective date of this Agreement. Within sixty 
       (60) days after the end of each such period, LICENSEE shall furnish to 
       DVA the written reports containing the information specified in 
       Sections 6.4, 6.5 and 6.6 hereof and shall pay to DVA all owed 
       royalties accrued hereunder in favor of DVA to the end of each such 
       period. If LICENSEE chooses the option specified in Section 5.7.2, 
       LICENSEE shall also send the applicable licensed manufacturer a copy 
       of the royalty report specified in Section 6.6 within the same 
       sixty-day period.

6.4    With respect to Licensed Products LICENSEE manufactures or purchases 
       from a manufacturer not listed in either Appendix D-1 or D-2, LICENSEE 
       shall submit a royalty report including the following information:

       6.4.1   identification by Type Number, brand name and/or label name, 
               Licensed Product type (for example, CD Digital Audio, CD-ROM, 
               etc.), Manufacturer's Net Selling Price, and quantity of each 
               Licensed Product type upon which royalty has accrued pursuant 
               to Section 6.1;

       6.4.2   the name of the manufacturer, city and either state or country 
               of the manufacture and the countries in which LICENSEE sold 
               (as evidenced by bill or invoice), first rented, first leased, 
               first put into use or Transferred those Licensed Products; and

       6.4.3   identification of the royalty basis used for each Licensed 
               Product type pursuant to the provisions of Section 5.0, the 
               amount of royalties due for each Licensed Product type, all 
               information required to show how such amount has been 
               calculated and the aggregate amount of all royalties due.


                               Page 12 of 23



       In the event that Section 6.4.1. does not apply, LICENSEE shall so 
       state. In the event no royalties are due, LICENSEE's report shall so 
       state.

6.5    With respect to Licensed Products LICENSEE purchases from a licensed 
       manufacturer listed in Appendix D-1, LICENSEE shall submit a royalty 
       report including the following information:

       6.5.1   identification by Type Number, brand name and/or label name, 
               Licensed Product type (for example, CD Digital Audio, CD-ROM, 
               etc.) Manufacturer's Net Selling Price, and quantity of each 
               Licensed Product type upon which royalty has accrued pursuant 
               to Section 6.1;

       6.5.2   the name of the licensed manufacture, city and either state 
               or country of the manufacturer and the countries in which 
               LICENSEE sold (as evidenced by bill or invoice), first rented, 
               first leased, first put into use or Transferred those Licensed 
               Products;

       6.5.3   identification of the royalty basis used for each Licensed 
               Product type pursuant to the provisions of Section 5.0, the 
               amount of royalties due for each Licensed Product type, all 
               information required to show how such amount has been 
               calculated and the aggregate amount of all royalties due; and

       6.5.4   identification by Type Number, brand name and/or label name, 
               Licensed Product type (for example, CD Digital Audio, CD-ROM, 
               etc.), and quantity of each Licensed Product type which is 
               available for sale by LICENSEE during the applicable account 
               period which is exempt from royalty in accordance with Section 
               5.6.

       In the event that either of Sections 6.5.1 and 6.5.4 do not apply, 
       LICENSEE shall so state as to each such Section. In the event no 
       royalties are due, LICENSEE's report shall so state.

6.6    With respect to Licensed Products LICENSEE purchases from a licensed,
       manufacturer listed in Appendix D-2, LICENSEE shall submit a royalty 
       report for each such licensed manufacturer including the following 
       information:

       6.6.1   identification by Type Number, brand name and/or label name, 
               Licensed Product type (for example, CD Digital Audio, CD-ROM,


                                 Page 13 of 23



               etc.), Manufacturer's Net Selling Price, and quantity of each 
               Licensed Product type purchased from the licensed manufacturer;

       6.6.2   the name of the licensed manufacturer, city and country of the 
               manufacture, and the countries in which LICENSEE sold (as 
               evidenced by bill or invoice), first rented, first leased, 
               first put into use or Transferred those Licensed Products;

       6.6.3   the total number of Licensed Products purchased from the 
               licensed manufacturer and the total number of information 
               bearing layers; and

       6.6.4   the royalty rate specified in Section 5.7.1 (if applicable), 
               the amount, if any, of the royalty paid by LICENSEE, and the 
               total outstanding royalty owed DVA for Licensed Products 
               purchased from the licensed manufacturer.

6.7    LICENSEE's royalty reports shall be certified by an officer of LICENSEE
       or by a designee of such officer to be correct to the best of LICENSEE's
       knowledge and information.

6.8    LICENSEE shall keep separate records in sufficient detail to permit 
       the determination of royalties payable hereunder. At the request of 
       DVA, LICENSEE will permit an independent auditor and/or technical 
       consultant selected by DVA, or any other person or persons acceptable 
       to both DVA and LICENSEE, to examine during ordinary business hours 
       once in each calendar year such reports and other documents as may be 
       necessary to verify or determine royalties paid or payable under this 
       Agreement. Such auditor, technical consultant or other person(s) shall 
       be instructed to report to DVA only the amount of royalties due and 
       payable. If no request for examination of such records for any 
       particular accounting period has been made by DVA within five (5) 
       years after the end of said period, the right to examine such records 
       for said period, and the obligation to keep such records for said 
       period, shall terminate.

6.9    The fees and expenses of DVA's representatives performing any 
       examination of record under Section 6.8 shall be borne by DVA. 
       However, if an error in royalties of more than three percent (3.0%) if 
       the total royalties due is discovered for any year examined, then the 
       total fees and expenses of these representatives shall be borne by 
       LICENSEE.


                                 Page 14 of 23



SECTION 7.0  INTEREST ON OVERDUE ROYALTIES AND OTHER PAYMENTS
7.1    LICENSEE shall be liable for interest at a rate of one and one-half 
       percent (1.5%) per month compounded monthly on any overdue royalty or 
       other payment set forth in Section 5.0 herein, commencing on the date 
       such royalty or other payment becomes due. If such interest rate 
       exceeds the maximum legal rate in the jurisdiction where a claim 
       therefor is being asserted, the interest rate shall be reduced to such 
       maximum legal rate.

SECTION 8.0  ASSIGNMENTS
8.1    LICENSEE shall not assign any of its rights or privileges hereunder 
       without the prior written consent of DVA, except to a successor in 
       ownership of all or substantially all the assets of LICENSEE, which 
       successor expressly assumes in writing the performance of all the 
       terms and conditions of this Agreement to be performed by LICENSEE as 
       if it were named herein in the place of LICENSEE. After any such 
       assignment, LICENSEE shall no longer be licensed hereunder.

SECTION 9.0  LICENSE TO DVA
9.1    LICENSEE grants to DVA and its Affiliates an irrevocable, worldwide, 
       non-exclusive, royalty-free license under LICENSEE's patents and 
       patent applications to make, have made, use, lease, sell or otherwise 
       Transfer products corresponding to the Licensed Products defined 
       herein, and to make, have made, use or have used Manufacturing 
       Apparatus in the manufacture of such products and to practice or have 
       practiced Manufacturing Processes in the manufacture of such products. 
       Said license to DVA and its Affiliates shall be effective as of the 
       date LICENSEE first pays royalties in accordance with Section 5.0 
       hereof. Said license shall be with respect to all of LICENSEE's 
       patents and patent applications, including utility models, design 
       patents, divisionals, reissues, extensions, continuations, and 
       reexaminations, under which patents and patent applications LICENSEE 
       now has or hereafter, during the term of this Agreement, obtains the 
       right to grant licenses to DVA of the scope granted herein.

9.2    The license as set forth in Section 9.1 shall not apply with respect 
       to any patent of LICENSEE, if such grant would result in the payment 
       of royalties by LICENSEE to third parties, except for payments to 
       Affiliates of LICENSEE and payments to third parties for inventions 
       made by said third parties while employed by LICENSEE or any of its 
       Affiliates.

SECTION 10.0  FACTORY INSPECTION
10.1   At LICENSEE's request, DVA will perform a factory inspection at 
       LICENSEE's Licensed Product manufacturing facility, or the Licensed 
       Product manufacturing


                                 Page 15 of 23

      facility of the manufacturer who supplies Licensed Products to 
      LICENSEE, and thereafter provide LICENSEE with claim charts indicating 
      which DVA Patent(s) listed in Appendix A apply to LICENSEE's products. 
      If LICENSEE is not the manufacturer, it is LICENSEE's responsibility to 
      obtain the authorization of the manufacturer for DVA to perform the 
      desired factory inspection. LICENSEE shall pay to DVA an inspection fee 
      of Fifty Thousand United States dollars (U.S. $50,000) for each Licensed 
      Product manufacturing facility to be inspected, said fee to be paid 
      prior to each inspection.

10.2  If LICENSEE notifies DVA that LICENSEE wishes to have the factory 
      inspection set forth in Section 10.1, then LICENSEE agrees to allow, or 
      to obtain authorization to allow, the representatives of DVA to inspect 
      the manufacturing facility as follows:

      10.2.1  DVA's representatives shall be allowed to inspect those parts of 
              the manufacturing facility which are directly related to the 
              possible infringement of DVA Patent(s). The inspection shall be 
              made during reasonable business hours as soon as practically 
              possible after payment of the inspection fee by LICENSEE. DVA 
              and LICENSEE shall determine by mutual agreement the time, 
              duration and other detailed manner and schedule of such 
              inspection.

      10.2.2  The employees at the manufacturing facility will be directed, to 
              the best of LICENSEE's ability, to answer all questions asked by 
              the DVA representatives and will allow the full and complete 
              inspection, copying, videotaping and photographing of all 
              documentation, machines, methods, and materials used in, at, or 
              with a part of the manufacturing facility which LICENSEE has the 
              right to disclose to others, as long as such questions and/or 
              such part of the facility is directly related to the possible 
              infringement. Any notes made by the DVA representatives and any 
              documents, photographs, and videotapes shall be stamped 
              "CONFIDENTIAL."

      10.2.3  Any inspection of a Licensed Product manufacturing facility 
              shall be on a confidential basis, and information learned as a 
              result thereof shall be used for no purpose other than the 
              technical discussions set forth herein. DVA shall safeguard the 
              confidential information learned with standards at least as high 
              as those that it uses to safeguard its own confidential 
              information.

                                       
                                 Page 16 of 23

      10.2.4  DVA shall not divulge any information obtained or learned as a 
              result of such inspection to any other person or entity other 
              than LICENSEE, including but not limited to other DVA licensees. 
              This obligation shall not apply to information which is or 
              becomes publicly available through no fault of DVA or is 
              rightfully obtained without a bind of secrecy.

      10.2.5  DVA shall use its best efforts to provide, within sixty (60) 
              days from the inspection of the Licensed Product manufacturing 
              facility, a report in writing to LICENSEE. The report shall 
              include those DVA Patent(s) which DVA believes are infringed by 
              such facility and shall be in the form of claim charts providing 
              the basis and reasons for the possible infringement of the DVA 
              Patent(s) in question.

              DVA shall use its best efforts to include in the report all DVA 
              Patent(s) which DVA believes are infringed by such facility. It 
              is understood and agreed by LICENSEE that the exclusion of one 
              or more DVA Patents neither stops DVA from asserting a claim of 
              infringement against LICENSEE under such DVA Patent(s), nor 
              affects the rights of DVA in any way with respect to such DVA 
              Patent(s).

              It is understood and agreed by LICENSEE that this report and 
              these claim charts are for settlement purposes only and cannot 
              and will not be used for any other purpose. LICENSEE agrees to 
              keep this report and these claim charts confidential and not to 
              disclose them to any other party.

10.3  LICENSEE can elect this inspection option once per calendar year. Any 
      inspection of a Licensed Product manufacturing facility after the first 
      inspection of such manufacturing facility shall be performed for a fee 
      to be determined and agreed upon between DVA and LICENSEE.

Section 11.0 TERM OF AGREEMENT; TERMINATION
11.1  Subject to Section 11.5 below, the term of this Agreement shall be from 
      the effective date hereof until the expiration of the last to expire of 
      the Licensed Patent(s), unless previously terminated as hereinafter 
      provided.

11.2  LICENSEE may terminate the license granted herein, but only in its 
      entirety, at any time by giving notice in writing to DVA. Such 
      termination shall be effective on the date such notice is received by 
      DVA.

                                       
                                 Page 17 of 23

11.3  DVA shall have the right to terminate this Agreement in the event:

      11.3.1  LICENSEE fails to make any payment when due under this Agreement
              and such payment is not made within sixty (60) days of written 
              notice from DVA; or

      11.3.2  LICENSEE defaults under any term of this Agreement, other than 
              a default involving the payment of money, which default is not 
              cured within thirty (30) days of written notice from DVA; or

      11.3.3  LICENSEE becomes insolvent or admits in writing its inability 
              to pay its debts as they mature or makes an assignment for the 
              benefit of creditors; or

      11.3.4  LICENSEE files a petition under any foreign or U.S. bankruptcy 
              law.

      The rights and remedies set forth in this section are not exclusive and
      are in addition to any other rights and remedies available to DVA under
      this Agreement or at law or equity.

11.4  In the event this Agreement or the license granted hereunder 
      shall be terminated pursuant to this Section 11.0 or assigned 
      pursuant to Section 8.0, the corresponding sublicenses granted 
      to Affiliates of LICENSEE pursuant to Section 3.3 shall 
      likewise terminate, but no notices need be given by DVA to such 
      Affiliates.

11.5  Any expiration or termination of this Agreement pursuant to 
      this Section 11.0, or any termination of a sublicense pursuant 
      to Section 3.3, shall not relieve LICENSEE of any obligation or 
      liability accrued hereunder prior to such termination 
      (including, without limitation, the obligations set forth in 
      Sections 5.0, 6.0 and 7.0), or rescind or give rise to any 
      right to rescind anything done by LICENSEE or any payments made 
      or other consideration given to DVA hereunder prior to the time 
      such termination becomes effective, and such termination shall 
      not affect in any manner any rights of DVA arising under this 
      Agreement prior to such termination.

                                       
                                 Page 18 of 23



SECTION 12.0  PAYMENTS, NOTICES AND OTHER COMMUNICATIONS

12.1   Any notice or other communication pursuant to this Agreement shall be 
       made by registered airmail (except that registered or certified mail 
       may be used where delivery is in the same country as mailing) and 
       shall be effective upon receipt by the addressee. Such notice or 
       communication shall be mailed to:

       12.1.1  In the case of DVA:

                   Dennis Fischel
                   President
                   DISCOVISION ASSOCIATES
                   Post Office Box 19616
                   Irvine, California 92713

       12.1.2  In the case of LICENSEE:

                   Alex Sandel
                   FUTURE MEDIA PRODUCTIONS
                   25136 Anza Drive
                   Valencia, California 91355

12.2   LICENSEE's royalty reports, as described in Section 6.0 of this 
       Agreement, shall be mailed via air mail to:

                   DISCOVISION ASSOCIATES
                   ATTN: Controller
                   Post Office Box 19616
                   Irvine, California 92713

                   Fax No.: (714) 660-1801

       A summary of the report, which states the total royalty to be paid, 
       shall be sent by facsimile to DVA on, or before, the mailing of the 
       complete report.

12.3   All payments set forth in Section 5.0 of this Agreement shall be paid 
       via bank wire transfer to:

                   Federal Reserve Bank of San Francisco
                   For Credit to Sumitomo Bank of California
                   San Francisco - Head Office
                   ABA:  121002042


                               Page 19 of 23



       For Further Credit to:

                   The Sumitomo Bank, Ltd., Los Angeles Branch
                   for Account of Discovision Associates
                   ABA:  122041594
                   ACCOUNT NUMBER: 046-133013-70

       or by check payable to DVA and mailed via air mail directly to:

                   DISCOVISION ASSOCIATES
                   ATTN: Controller
                   Post Office Box 19616
                   Irvine, California 92713

SECTION 13.0  APPLICABLE LAW; VENUE; JURISDICTION
13.1   This Agreement shall be construed, and the legal relations between the 
       parties hereto shall be determined, in accordance with the laws of the 
       State of New York and, as applicable, the laws of the United States of 
       America.

13.2   Any dispute that arises under or relates to this Agreement shall, at 
       DVA's election, be prosecuted exclusively in the appropriate court 
       situated in the State of Delaware, United States of America. LICENSEE 
       consents to the venue and jurisdiction of such court for purposes of 
       any such dispute, and agrees that a judgment of such court shall be 
       enforceable in the jurisdiction in which LICENSEE is located.

SECTION 14.0  MISCELLANEOUS
14.1   Nothing contained in this Agreement shall be construed as:

       14.1.1  requiring the filing of any patent application, the securing 
               of any patents or the maintenance of any patents; or

       14.1.2  a warranty or representation by DVA as to the validity or 
               scope of any Licensed Patent; or

       14.1.3  a warranty or representation that the manufacture, use, 
               rental, lease, sale or other Transfer of any Licensed Product 
               is free from infringement of any patents or other rights of 
               third parties; or 

       14.1.4  an obligation on the part of DVA to furnish any manufacturing 
               or technical information, or any information concerning other 
               licensees; or


                               Page 20 of 23



       14.1.5  an obligation upon DVA to make any determination as to the 
               applicability of its patents to any of LICENSEE's products, 
               except as otherwise provided in Section 10.0; or

       14.1.6  a license with respect to any act which would otherwise 
               constitute inducement of infringement or contributory 
               infringement under United States patent law or its equivalent 
               under any law foreign to the United States; or

       14.1.7  conferring any right to use, in advertising, publicity, or 
               otherwise, any name, trade name, trademark, service mark, 
               symbol or any other identification or any contraction, 
               abbreviation or simulation thereof; or 

       14.1.8  conferring any rights by implication, estoppel or otherwise, 
               to or under copyrights with respect to any computer software 
               under any present system of statutory protection or one 
               hereinafter enacted in any country or countries, wherein the 
               copying of such computer software is a requisite of 
               infringement under such system; or

       14.1.9  an obligation to bring or prosecute actions or suits against 
               third parties for infringement of any patent.

14.2   LICENSEE shall have the complete responsibility and shall use its 
       best efforts to obtain all necessary approvals and validations of 
       this Agreement, including all necessary approvals and validations for 
       any products made, used or sold hereunder.

14.3   LICENSEE will sell and deliver to DVA, F.O.B. LICENSEE's shipping 
       point, any Licensed Product ordered from LICENSEE by DVA and which is 
       available for sale by LICENSEE. LICENSEE will also sell and deliver to 
       DVA a copy of each manual (including, but not limited to, service, use 
       and other technical manuals) relevant to a Licensed Product which is 
       available for sale by LICENSEE, provided that, upon request by 
       LICENSEE, DVA first delivers to LICENSEE a letter agreeing to hold 
       such manual in confidence and to use it only for reverse engineering 
       purposes. Any such sales will be at the same prices charged to 
       LICENSEE's most favored customer.

14.4   The waiver by either party of a breach or default of any provision of 
       this Agreement by the other party shall not be construed as a waiver 
       of any succeeding breach of the same or any other provision, nor shall 
       any delay or omission on the part of either party to exercise or avail 
       itself of any right, power


                               Page 21 of 23



       or privilege that it has or may have hereunder operate as a waiver of any
       right, power or privilege of such party.

14.5   It is the intention of both parties to make this Agreement 
       binding only to the extent that it may be lawfully done under existing
       applicable law as identified in Section 13.0. If any sentence, paragraph,
       clause or combination of the same is in violation of any applicable law, 
       that portion which is in violation shall be severed from this Agreement 
       and the remainder of this Agreement shall remain binding upon the 
       parties hereto, except that no license is granted, expressly or by 
       implication, unless royalties are paid pursuant to Section 5.0.

14.6   Each party represents and warrants that it has the full right and 
       power to enter into this Agreement and that there are no outstanding 
       agreements, assignments, or encumbrances to which the representing party 
       is bound which may restrict, or prohibit entry into, or performance 
       under, this Agreement. DVA further represents and warrants that it has 
       the full power to grant the license and release set forth in Sections 
       3.0 and 4.0. Neither party makes any other representations or 
       warranties, express or implied, other than the representations set forth 
       in Sections 3.3 and 4.2 regarding Affiliates.

14.7   The headings of the several sections are inserted for convenience 
       of reference only and are not intended to affect the meaning or 
       interpretation of this Agreement.

14.8   The specifications referred to in various definitions in Section 
       2.0 of this Agreement (i.e., the Red Book, Green Book, Yellow Book and 
       Rainbow Book) are for clarity and the convenience of the parties in 
       determining the product(s) that the parties intend to be licensed under 
       this Agreement.

14.9   This Agreement may be executed in any number of copies, but all 
       of such counterparts together shall constitute one and the same 
       Agreement.

14.10  The parties hereto acknowledge that this instrument sets forth 
       the entire agreement and understanding of the parties hereto and shall 
       supersede all previous communications, representations and 
       understandings, either oral or written, between the parties relating to 
       the subject matter hereof, except prior written agreements signed by 
       both parties, and shall not be subject to any changes or modifications 
       except by the signing of a written instrument by or on behalf of both 
       parties hereto.




                               Page 22 of 23




IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be duly 
signed as of the dates written below, to be effective as of the date first 
above written.

                                           DISCOVISION ASSOCIATES

                        


                                           /s/ Dennis Fischel
                                           --------------------------------
                                   By:     Dennis Fischel
Witness:                           Title:  President



[ILLEGIBLE]                        Date:   Sept. 16, 1996
- --------------------------------           --------------------------------


                                           FUTURE MEDIA PRODUCTIONS


EL:DHT:dh


Witness:                                   /s/ Alex Sandel
                                           --------------------------------
                                   By:     Alex Sandel
                                   Title:



                                   Date:    8-26-96
- --------------------------------           --------------------------------

 







                               Page 23 of 23



                                        APPENDIX A




- -----------------------------------------------------------------------------------------------------------------------------------
                              INDIVIDUAL
                               PATENT
                    PATENT     ROYALTY
   COUNTRY          NUMBER      RATE                                         TITLE
- -----------------------------------------------------------------------------------------------------------------------------------
                                
UNITED STATES   US 4,152,586    1.65%    OPTICAL TRANSDUCER AND FOCUSING SYSTEM
 (Cont.)        US 4,161,752    2.00%    HIGH DENSITY VIDEO DISC HAVING TWO PIT DEPTHS
                US 4,161,753    2.00%    VIDEO RECORDING DISK WITH INTERLACING OF DATA FOR FRAMES ON THE SAME TRACK
                US 4,185,065    1.65%    APPARATUS FOR REPLICATING CENTRALLY APERTURED VIDEO DISC RECORDS
                US 4,100,880    1.65%    DIGITAL METHOD AND APPARATUS FOR ROTATING AN INFORMATION STORAGE DISC
                US 4,204,199    2.00%    METHOD AND MEANS FOR ENCODING AND DECODING DIGITAL DATA
                US 4,210,031    2.00%    VIDEO PLAYER AND/OR RECORDER WITH HADAMARD TRANSFORM
                US 4,211,617    2.00%    PROCESS FOR PRODUCING A STAMPER FOR VIDEODISC PURPOSES
                US 4,222,072    2.00%    VIDEO PLAYER/RECORDER WITH NON-LINEAR MARK LENGTH MODULATION
                US 4,225,873    2.00%    RECORDING AND PLAYBACK SYSTEM
                US 4,228,326    2.00%    SYSTEM FOR RECORDING INFORMATION ON A ROTATABLE STORAGE DISC IN A SUBSTANTIALLY UNIFORM 
                                                RECORDING DENSITY
                US 4,232,388    1.00%    METHOD AND MEANS FOR ENCODING AND DECODING DIGITAL DATA
                US 4,241,698    1.65%    VACUUM EVAPORATION SYSTEM FOR THE DEPOSITION OF A THIN EVAPORATED LAYER HAVING A HIGH 
                                                DEGREE OF UNIFORMITY
                US 4,252,327    2.00%    VIDEO DISC PLAYER
                US 4,256,374    0.75%    WRITE AND READ OBJECTIVE LENS FOR HIGH DENSITY STORAGE
                US 4,260,360    1.65%    METHOD AND MEANS FOR REPLICATING CENTRALLY APERTURED VIDEO DISC RECORDS
                US 4,264,911    2.00%    OPTICAL RECORDING DISC AND RELATED METHOD OF MANUFACTURE
                US 4,274,110    2.00%    RECORDING DISC COVER AND PLAYER APPARATUS FOR REMOVING COVER
                US 4,286,848    0.75%    REPRODUCING OBJECTIVE LENS FOR VIDEODISCS
                US 4,307,381    2.00%    METHOD AND MEANS FOR ENCODING AND DECODING DIGITAL DATA
                US 4,310,919    2.00%    OPTICAL VIDEO DISC STRUCTURE
                US 4,313,100    1.20%    METHOD FOR MAKING A COMPOSITE VIDEO DISC
                US 4,313,101    2.00%    RECORDING MEDIUM HAVING A PILOT SIGNAL WITH AN ALIGNED PHASE ANGLE IN ADJACENT TRACKS
                US 4,337,538    2.00%    DRIVE ASSEMBLY FOR A VIDEO RECORDER-PLAYBACK MACHINE
                US 4,330,614    2.00%    SPINDLE ASSEMBLY FOR A VIDEO RECORDER-PLAYBACK MACHINE
                US 4,340,353    1.65%    NOT SPRUE VALUE ASSEMBLY FOR AN INJECTION MOLDING MACHINE
                US 4,340,055    2.00%    VIDEO DISC PLAYER
                US 4,341,469    0.80%    LASER SHADOWGRAPH
                US 4,345,261    2.00%    DIELECTRIC RECORDING MEDIUM
                US 4,347,500    0.80%    SPINDLE CLAMP ASSEMBLY FOR A VIDEO RECORDER-PLAYBACK MACHINE
- -----------------------------------------------------------------------------------------------------------------------------------


                                   Page 4 of 7



                                        APPENDIX A




- -----------------------------------------------------------------------------------------------------------------------------------
                              INDIVIDUAL
                                PATENT
                     PATENT     ROYALTY
  COUNTRY            NUMBER      RATE                          TITLE
- -----------------------------------------------------------------------------------------------------------------------------------
                              
UNITED STATES   US  4,347,619    2.00%   DIGITAL FORMATTING SYSTEM
(cont.)         US  4,353,767    2.00%   METHOD OF MANUFACTURING AN OPTICAL READING DISC
                US  4,357,633    2.00%   FOCUS DETECTOR FOR AN OPTICAL DISC PLAYBACK SYSTEM
                US  4,358,774    2.00%   APPARATUS AND METHOD FOR CONTROLLING FOCUS IN A RECORDING MEDIUM
                US  4,358,802    1.65%   FLUID CUSHION TURNTABLE FOR VIDEO DISC PLAYER
                US  4,367,545    2.00%   VIDEO DISC PLAYER
                US  4,388,957    0.75%   WIDE APERTURE OBJECTIVE LENS
                US  4,372,741    1.65%   HOT SPRUE VALVE ASSEMBLY FOR AN INJECTION MOLDING MACHINE
                US  4,374,638    1.65%   APPARATUS FOR PRODUCING CENTRALLY APERTURED RECORD DISCS
                US  4,391,578    2.00%   HOT SPRUE VALVE ASSEMBLY FOR AN INJECTION MOLDING MACHINE
                US  4,394,117    2.00%   HOT SPRUE SLEEVE VALVE ASSEMBLY FOR AN INJECTION MOLDING MACHINE
                US  4,397,805    2.00%   METHOD FOR MAKING A VIDEO DISC
                US  4,405,540    1.65%   HOT SPRUE VALVE ASSEMBLY FOR AN INJECTION MOLDING MACHINE
                US  4,412,743    1.00%   OFF-AXIS LIGHT BEAM DEFECT DETECTOR
                US  4,412,805    1.65%   HOT SPRUE ASSEMBLY FOR AN INJECTION MOLDING MACHINE
                US  4,415,138    2.00%   ELASTOMERIC VIDEODISC MOLD OR INTERMEDIATE MEMBER
                US  4,422,189    1.65%   LENS ASSEMBLY FOR A VIDEO RECORDER-PLAYBACK MACHINE
                US  4,422,904    2.00%   METHOD FOR FORMING VIDEO DISCS
                US  4,430,401    2.00%   METHOD FOR PRODUCING A RECORDING DISC STAMPER
                US  4,433,423    2.00%   HIGH QUALITY DELTA MODULATOR
                US  4,439,132    1.65%   HOT SPRUE ASSEMBLY FOR AN INJECTION MOLDING MACHINE
                US  4,441,179    2.00%   OPTICAL VIDEO DISC STRUCTURE
                US  4,445,144    0.60%   METHOD FOR DETECTING ECCENTRICITY IN A VIDEO DISC AND IN A VIDEO DISC PLAYER
                US  4,445,209    2.00%   DITHERED FOCUSING SYSTEMS
                US  4,450,486    2.00%   SYSTEM FOR RECORDING CONTINUOUS-PLAY AND STOP-MOTION SIGNAL
                US  4,451,013    2.00%   VIDEO DISC READ BACK SCANNER
                US  4,455,634    2.00%   AUDIO/VIDEO QUALITY MONITORING SYSTEM
                US  4,456,375    1.20%   OPTICAL DISC MEASUREMENT BY REFRACTION
                US  4,456,014    2.00%   METHOD AND APPARATUS FOR STORING INFORMATION ON A STORAGE MEDIUM
                US  4,465,977    1.65%   ERRONEOUS PULSE SEQUENCE DETECTOR

- -----------------------------------------------------------------------------------------------------------------------------------

                                         Page 5 of 7




                                        APPENDIX A

- -----------------------------------------------------------------------------------------------------------------------------------
                              INDIVIDUAL
                                PATENT
                     PATENT     ROYALTY
  COUNTRY            NUMBER      RATE                          TITLE
- -----------------------------------------------------------------------------------------------------------------------------------
                              
UNITED STATES   US  4,466,934    1.65%   HOT SPRUE VALVE ASSEMBLY FOR AN INJECTION MOLDING MACHINE
(cont.)         US  4,467,467    2.00%   VIDEO RECORDER-PLAYBACK MACHINE
                US  4,477,890    1.20%   MAPPING DISC DEFECT DETECTOR
                US  4,479,146    2.00%   VERTICAL CODE VERIFIER
                US  4,488,279    2.00%   VIDEO RECORDER-PLAYBACK MACHINE
                US  4,998,011    1.65%   FLAT PLAT FOCUS SENSING APPARATUS
                US  4,499,502    2.00%   COMPRESSED BANDWIDTH FREQUENCY MODULATION SIGNAL FORMAT APPARATUS AND METHOD
                US  4,499,560    2.00%   WRITING BEAM FOCUS MONITOR
                US  4,500,464    2.00%   PROCESS FOR MAKING A VIDEO RECORD DISC
                US  4,504,939    2.00%   STORAGE MEDIUM TRACK PITCH DETECTOR
                US  4,510,536    2.00%   SIGNAL CONDITIONING METHOD AND APPARATUS FOR FM CODE SIGNAL
                US  4,519,004    2.00%   EXTENDED PLAY VIDEODISC
                US  4,524,444    2.00%   ANALYZING THE SIGNAL TRANSFER CHARACTERISTICS OF A SIGNAL PROCESSING UNIT
                US  4,635,648    1.65%   METHOD AND MEANS FOR DRYING COATINGS ON HEAT SENSITIVE MATERIALS
                US  4,668,000    2.00%   STORAGE MEDIUM TRACK PITCH DETECTOR
                US  4,583,210    2.00%   METHOD AND APPARATUS FOR STORING AND RETRIEVING INFORMATION
                US  4,598,324    2.00%   AUDIO EVALUATION UNDER CONTROL OF VIDEO PICTURE FRAME NUMBER
                US  4,611,318    2.00%   METHOD AND APPARATUS FOR MONITORING THE STORAGE OF INFORMATION ON A STORAGE MEDIUM
                US  4,616,753    2.00%   VIDEO RECORD DISC AND PROCESS FOR MAKING SAME
                US  4,023,837    2.00%   AUDIO/VIDEO QUALITY MONITORING SYSTEM
                US  4,646,084    2.00%   STORAGE MEDIUM TRACK PITCH DETECTOR
                US  4,706,133    2.00%   METHOD AND APPARATUS FOR RECOVERING INFORMATION FROM A VIDEO DISC
                US  4,759,007    2.00%   STORAGE MEDIUM TRACK PITCH DETECTOR
                US  4,764,915    2.00%   METHOD AND APPARATUS FOR RECORDING A MULTIPLEXED SIGNAL ON A RECORD MEDIUM
                US  4,796,098    2.00%   BANDED AND INTERLEAVED VIDEO DISC FORMAT
                US  4,797,752    2.00%   BANDED AND INTERLEAVED VIDEO DISC FORMAT
                US  4,810,223    2.00%   VIDEO RECORD DISC
                US  4,893,297    2.00%   VIDEO RECORD DISC AND PROCESS FOR MAKING SAME
                US  4,986,878    2.00%   METHOD AND APPARATUS FOR SCANNING A RECORDING MEDIUM FOR DEFECTS

                                         Page 6 of 7




                                        APPENDIX A

- -----------------------------------------------------------------------------------------------------------------------------------
                              INDIVIDUAL
                                PATENT
                     PATENT     ROYALTY
  COUNTRY            NUMBER      RATE                          TITLE
- -----------------------------------------------------------------------------------------------------------------------------------
                              
UNITED STATES   US  5,001,568    2.00%   SIGNAL EVALUATION BY ACCUMULATION AT ONE RATE AND RELEASING AND TESTING AT A SLOWER RATE
(cont.)         US  5,003,526    2.00%   SYSTEM FOR RECORDING DIGITAL INFORMATION IN A PULSE-LENGTH MODULATION FORMAT
                US  5,018,020    2.00%   RECORD DISC FOR STORING SEPARATE VIDEO AND AUDIO INFORMATION
                US  5,084,852    2.00%   SYSTEM FOR RECORDING DIGITAL INFORMATION IN A PULSE-LENGTH MODULATION FORMAT
                US  5,126,990    2.00%   A METHOD OF EVALUATING A STORAGE MEDIUM BY RECIRCULATING A TEST SAMPLE OF A SIGNAL
                US  5,136,558    2.00%   TWO AXIS ELECTROMAGNETIC ACTUATOR
                US  5,155,633    1.65%   ANAMORPHIC ACHROMATIC PRISM FOR OPTICAL DISC HEADS
                US  5,177,640    1.65%   TWO-AXIS MOVING COIL ACTUATOR
                US  5,220,434    2.00%   VIDEO RECORDING MEDIUM FOR STOP-MOTION PLAYBACK
                US  5,245,174    2.00%   FOCUS SENSING APPARATUS UTILIZING A REFLECTING SURFACE HAVING VARIABLE REFLECTIVITY
                US  5,253,244    2.00%   SYSTEM FOR RECORDING DIGITAL INFORMATION IN A PULSE-LENGTH MODULATION FORMAT
                US  5,265,079    2.00%   SEEK ACTUATOR FOR OPTICAL RECORDING
                US  5,313,332    0.60%   FLEXURE SUSPENSION FOR TWO AXIS ACTUATOR
                US  5,321,000    2.00%   SYSTEM FOR RECORDING DIGITAL INFORMATION IN A PULSE-LENGTH MODULATION FORMAT
                US  5,331,622    2.00%   COMPACT OPTICAL HEAD
                US  5,349,175    2.00%   FOCUS SENSING APPARATUS USING ELECTRICAL AGC TO ENHANCE DIFFERENTIAL FOCUS ERROR SIGNAL
                US  5,373,490    2.00%   SYSTEM FOR RECORDING DIGITAL INFORMATION IN A PULSE-LENGTH MODULATION FORMAT
                US  5,375,116    2.00%   SYSTEM FOR RECORDING DIGITAL INFORMATION IN A PULSE-LENGTH MODULATION FORMAT
                US  5,448,545    2.00%   SYSTEM FOR RECORDING DIGITAL INFORMATION IN A PULSE-LENGTH MODULATION FORMAT
                US  5,459,709    2.00%   SYSTEM FOR RECORDING DIGITAL INFORMATION IN A PULSE-LENGTH MODULATION FORMAT
                US  5,470,390    2.00%   SYSTEM FOR RECORDING DIGITAL INFORMATION IN A PULSE-LENGTH MODULATION FORMAT
                US  RE 32,431    2.00%   METHOD AND APPARATUS FOR RECOVERING INFORMATION FROM A ROTATABLE STORAGE DISC

- -----------------------------------------------------------------------------------------------------------------------------------


                Note:  An "E" directly following the Patent Number indicates
                       that patent has expired.


                                 APPENDIX B

UNITED STATES AND CANADIAN PATENTS LICENSED TO LICENSEE UNDER THIS AGREEMENT:



                                 INDIVIDUAL
                                   PATENT
        PATENT NUMBER            ROYALTY RATE
        -------------            ------------
                              



APPENDIX B PATENTS SHALL BE ALL OF THE PATENTS LISTED IN APPENDIX A




                                 APPENDIX B
                                 Page 1 of 1


                                 APPENDIX C

LICENSEE'S Affiliates as of the effective date of this Agreement are:

                Company: 
                          ------------------------------
                Address: 
                          ------------------------------

                          ------------------------------

                          ------------------------------


                Company: 
                          ------------------------------
                Address: 
                          ------------------------------

                          ------------------------------

                          ------------------------------


                Company: 
                          ------------------------------
                Address: 
                          ------------------------------

                          ------------------------------

                          ------------------------------


                Company: 
                          ------------------------------
                Address: 
                          ------------------------------

                          ------------------------------

                          ------------------------------


                Company: 
                          ------------------------------
                Address: 
                          ------------------------------

                          ------------------------------

                          ------------------------------


                                  APPENDIX C
                                 Page 1 of 2



                Company: 
                          ------------------------------
                Address: 
                          ------------------------------

                          ------------------------------

                          ------------------------------


                Company: 
                          ------------------------------
                Address: 
                          ------------------------------

                          ------------------------------

                          ------------------------------


                Company: 
                          ------------------------------
                Address: 
                          ------------------------------

                          ------------------------------

                          ------------------------------


                Company: 
                          ------------------------------
                Address: 
                          ------------------------------

                          ------------------------------

                          ------------------------------


                Company: 
                          ------------------------------
                Address: 
                          ------------------------------

                          ------------------------------

                          ------------------------------


                                  APPENDIX C
                                 Page 2 of 2



                                 APPENDIX D-1

LICENSED DISC MANUFACTURERS WHO ARE PAYING UNITED STATES AND CANADIAN RATES:



                                    
                                       National Tape & Disc Inc.
Allied Digital Technologies
(Hauppauge Record Mfg., Ltd.)          Nimbus Manufacturing Inc.

Americ Disc Inc.                       Nippon Columbia Co., Ltd. (U.S.)

American MultiMedia, Inc.              Optical Disc Corporation

ASR Recording Services                 Philips (N.V.) Gloeilampenfabrieken

Astraltech Americas, Inc.              Pilz (U.S.)

Atlantic Recording Corporation         Pioneer

Bertelsmann de Mexico                  P & O Compact Disc

Better Quality Cassettes, Inc.         Producers Color/Technidisc

Cinram Ltd.                            Sanyo Laser Products

Denon Corporation (U.S.A)              Sanyo Verbarim CD Company, L.L.C.

Digital Audio Disc Corporation (U.S.)  Sonopress Inc. (U.S.)

Discovery Systems/Metatec              Sonopress (Germany)

Distribution North America             Sony Corporation (U.S.)

Eastern Standard Productions, Inc.     Sony Music Entertainment

Eva-Tone, Inc.                         Time Warner Inc. (U.S.)

EMI Manufacturing (USA)                U.S. Optical Disc

JVC America                            Warner Bros. Records Inc.

KAO Corporation                        Warner Communications Inc.

Kuraray Co., Ltd.                      WEA Manufacturing Inc.

Mitsubishi Plastics Industries Ltd.    Zomax Optical Media



                                  APPENDIX D-1
                                  Page 1 of 1



                                 APPENDIX D-2

LICENSED DISC MANUFACTURERS NOT PAYING UNITED STATES AND CANADIAN RATES:



                                        
Bertelsmann AG                             Pilz GmbH & Company
                                             Compact Disc KG
Damont Audio Limited                       
                                           Ritek Incorporation
EMI Compact Disc (Holland)                 
                                           Sanyo Electric Co., Ltd.
EMI Manufacturing Australia                
                                           Seiko Epson
Fuji Photo Film Co., Ltd.                  
                                           Show-Ads Omega Pty. Ltd.
Fujitsu Limited                            (Disctronics Technologies)
                                           
Hitachi Ltd.                               Sonopress (Germany)

Japan Optical Disc Corporation             Sonopress (Mexico)

KAO Corporation                            Sonopress Pan Asia Ltd.
                                           
Matsushita Electric Industrial Co., Ltd.   Sony Corporation (Japan)

Mayking Records Ltd.                       Sony DADC Austria AG

Memory-Tech Corporation                    TDK Corporation

Mitsubishi Electric Corporation            Thorn EMI plc

Moulage Plastique de L'ouest (MPO)         Toshiba Corporation

Nimbus Manufacturing (UK) Ltd.             Toshiba-EMI Limited

Nippon Columbia Co., Ltd. (Japan)          Toyo Recording Co., Ltd.

Optrom, Inc.                               Victor Company of Japan




                                  APPENDIX D-2
                                  Page 1 of 1