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                                                                     EXHIBIT 4.6


                         REGISTRATION RIGHTS AGREEMENT


         REGISTRATION RIGHTS AGREEMENT (this "AGREEMENT"), dated as of January
22, 1997, by and among JTS Corporation, a Delaware corporation, with
headquarters located at 166 Baypointe Parkway, San Jose, California 95134 (the
"COMPANY"), and the undersigned buyers (each, a "BUYER" and collectively, the
"BUYERS").

         WHEREAS:

         A.      In connection with the Securities Purchase Agreement by and
among the parties of even date herewith (the "SECURITIES PURCHASE AGREEMENT"),
the Company has agreed, upon the terms and subject to the conditions of the
Securities Purchase Agreement, to issue and sell to the Buyers shares of the
Company's Series C Convertible Preferred Stock (the "SERIES C PREFERRED
SHARES"), which will be convertible into shares of the Company's common stock,
$.001 par value per share (the "COMMON STOCK") (as converted, the "CONVERSION
SHARES") in accordance with the terms of the Company's Certificate of
Designations, Preferences and Rights of the Series C Preferred Shares; and

         B.      To induce the Buyers to execute and deliver the Securities
Purchase Agreement, the Company has agreed to provide certain registration
rights under the Securities Act of 1933, as amended, and the rules and
regulations thereunder, or any similar successor statute (collectively, the
"1933 ACT"), and applicable state securities laws:

         NOW, THEREFORE, in consideration of the premises and the mutual
covenants contained herein and other good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, the Company and the
Buyers hereby agree as follows:

         1.      DEFINITIONS.

                 As used in this Agreement, the following terms shall have the
following meanings:

                 a.       "INVESTOR" means a Buyer and any transferee or
assignee thereof to whom a Buyer assigns its rights under this Agreement and
who agrees to become bound by the provisions of this Agreement in accordance
with Section 9.

                 b.       "PERSON" means a corporation, a limited liability
company, an association, a partnership, an organization, a business, an
individual, a governmental or political subdivision thereof or a governmental
agency.

                 c.       "REGISTER," "REGISTERED," and "REGISTRATION" refer to
a registration effected by preparing and filing one or more Registration
Statements in compliance with the 1933 Act and pursuant to Rule 415 under the
1933 Act or any successor rule providing for offering securities on a
continuous basis ("RULE 415"), and the declaration or ordering of effectiveness
of such Registration Statement(s) by the United States Securities and Exchange
Commission (the "SEC").
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                 d.       "REGISTRABLE SECURITIES" means the Conversion Shares
issued or issuable upon conversion of the Series C Preferred Shares and any
shares of capital stock issued or issuable with respect to the Conversion
Shares or the Series C Preferred Shares as a result of any stock split, stock
dividend, recapitalization, exchange or similar event.

                 e.       "REGISTRATION STATEMENT" means a registration
statement of the Company filed under the 1933 Act.

         Capitalized terms used herein and not otherwise defined herein shall
have the respective meanings set forth in the Securities Purchase Agreement.

         2.      REGISTRATION.

                 a.       Mandatory Registration.  The Company shall prepare,
and, on or prior to twenty (20) days after the date of issuance of the relevant
Series C Preferred Shares, file with the SEC a Registration Statement or
Registration Statements (as is necessary) on Form S-1 (or, if such form is
unavailable for such a registration, on such other form as is available for
such a registration, subject to the consent of each Buyer and the provisions of
Section 2(e), which consent will not be unreasonably withheld), covering the
resale of all of the Registrable Securities, which Registration Statement(s)
shall state that, in accordance with Rule 416 promulgated under the 1933 Act,
such Registration Statement(s) also covers such indeterminate number of
additional shares of Common Stock as may become issuable upon conversion of the
Series C Preferred Shares (i) to prevent dilution resulting from stock splits,
stock dividends or similar transactions and (ii) by reason of changes in the
Conversion Price or Conversion Rate of the Series C Preferred Shares in
accordance with the terms thereof.  Such Registration Statement shall initially
register for resale at least 17,000,000 shares of Common Stock, subject to
adjustment as provided in Section 3(b), and such registered shares of Common
Stock shall be allocated among the Investors pro rata based on the total number
of Registrable Securities issued or issuable as of each date that a
Registration Statement, as amended, relating to the resale of the Registrable
Securities is declared effective by the SEC.  The Company shall use its best
efforts to have the Registration Statement declared effective by the SEC within
eighty (80) days after the issuance of the relevant Series C Preferred Shares.

                 b.       Underwritten Offering.  If any offering pursuant to a
Registration Statement pursuant to Section 2(a) involves an underwritten
offering, the Buyers shall have the right to select one legal counsel and an
investment banker or bankers and manager or managers to administer their
interest in the offering, which investment banker or bankers or manager or
managers shall be reasonably satisfactory to the Company.

                 c.       Piggy-Back Registrations.  If at any time prior to
the expiration of the Registration Period (as hereinafter defined) the Company
proposes to file with the SEC a Registration Statement relating to an offering
for its own account or the account of others under the 1933 Act of any of its
securities (other than on Form S-4 or Form S-8 or their then equivalents
relating to securities to be issued solely in connection with any acquisition
of any entity or business or equity securities issuable in connection with
stock option or other employee benefit plans) the Company shall promptly send
to each Investor who is entitled to registration rights under this Section 2(c)
written notice of the Company's intention to file a Registration





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Statement and of such Investor's rights under this Section 2(c) and, if within
twenty (20) days after receipt of such notice, such Investor shall so request
in writing, the Company shall include in such Registration Statement all or any
part of the Registrable Securities such Investor requests to be registered,
subject to the priorities set forth in Section 2(d) below.  No right to
registration of Registrable Securities under this Section 2(c) shall be
construed to limit any registration required under Section 2(a).  The
obligations of the Company under this Section 2(c) may be waived by Investors
holding a majority of the Registrable Securities.  If an offering in connection
with which an Investor is entitled to registration under this Section 2(c) is
an underwritten offering, then each Investor whose Registrable Securities are
included in such Registration Statement shall, unless otherwise agreed by the
Company, offer and sell such Registrable Securities in an underwritten offering
using the same underwriter or underwriters and, subject to the provisions of
this Agreement, on the same terms and conditions as other shares of Common
Stock included in such underwritten offering.

                 d.       Priority in Piggy-Back Registration Rights in
connection with Registrations for Company Account.  If the registration
referred to in Section 2(c) is to be an underwritten public offering for the
account of the Company and the managing underwriter(s) advise the Company in
writing, that in their reasonable good faith opinion, marketing or other
factors dictate that a limitation on the number of shares of Common Stock which
may be included in the Registration Statement is necessary to facilitate and
not adversely affect the proposed offering, then the Company shall include in
such registration: (1) first, all securities the Company proposes to sell for
its own account, (2) second, up to the full number of securities proposed to be
registered for the account of the holders of securities entitled to inclusion
of their securities in the Registration Statement by reason of demand
registration rights, and (3) third, the securities requested to be registered
by the Investors and holders of the Company's Series B Convertible Preferred
Stock, Common Stock issued or issuable upon conversion of the Company's Series
B Convertible Preferred Stock or Common Stock issued in connection with the
Company's Series A Convertible Preferred Stock entitled to participate in the
registration, drawn from them pro rata based on the number each has requested
to be included in such registration.

                 e.       Eligibility for Form S-3.  The Company represents and
warrants that it will meet the requirements for the use of Form S-3 for
registration of the sale by the Buyers and any other Investor of the
Registrable Securities on and after August 21, 1997 and the Company has filed
and shall file all reports required to be filed by the Company with the SEC in
a timely manner so as to obtain and maintain such eligibility for the use of
Form S-3.  The Company shall undertake to register the Registrable Securities
on Form S-3 as soon as such form is available, provided that the Company shall
maintain the effectiveness of the Registration Statement then in effect until
such time as a Registration Statement on Form S-3 covering the Registrable
Securities has been declared effective by the SEC.

         3.      RELATED OBLIGATIONS.

         Whenever an Investor has requested that any Registrable Securities be
registered pursuant to Section 2(c) or at such time as the Company is obligated
to file a Registration Statement with the SEC pursuant to Section 2(a), the
Company will use its best efforts to effect the registration





                                      -3-
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of the Registrable Securities in accordance with the intended method of
disposition thereof and, pursuant thereto, the Company shall have the following
obligations:

                 a.       The Company shall promptly prepare and file with the
SEC a Registration Statement with respect to the Registrable Securities (on or
prior to twenty (20) days after the date of issuance of the relevant Series C
Preferred Shares for the registration of Registrable Securities pursuant to
Section 2(a)) and use its best efforts to cause such Registration Statement(s)
relating to Registrable Securities to become effective as soon as possible
after such filing (within eighty (80) days after the issuance of the relevant
Series C Preferred Shares for the registration of Registrable Securities
pursuant to Section 2(a)), and keep the Registration Statement(s) effective
pursuant to Rule 415 at all times until the earlier of (i) the date as of which
the Investors may sell all of the Registrable Securities without restriction
pursuant to Rule 144(k) promulgated under the 1933 Act (or successor thereto)
or (ii) the date on which (A) the Investors shall have sold all the Registrable
Securities and (B) none of the Series C Preferred Shares is outstanding (the
"REGISTRATION PERIOD"), which Registration Statement(s) (including any
amendments or supplements thereto and prospectuses contained therein) shall not
contain any untrue statement of a material fact or omit to state a material
fact required to be stated therein, or necessary to make the statements
therein, in light of the circumstances in which they were made, not misleading;
provided, however, that for up to a period of thirty (30) days, the Company may
delay seeking effectiveness of the Registration Statement if such Registration
Statement would be required to disclose material non-public information
concerning the Company, the disclosure of which at the time would not be, in
the good faith opinion of the Board of Directors of the Company, in the best
interest of the Company and, in the opinion of counsel to the Company,
otherwise required (a "REGISTRATION DELAY"); provided, further, that the
Company shall promptly (x) notify the Investors in writing of the existence of
events giving rise to a Registration Delay and (y) provide the Investors with
such opinions in writing.  The provisions of Section 2(c) of the Certificate of
Designations shall not be applicable during the period of a Registration Delay.

                 b.       The Company shall prepare and file with the SEC such
amendments (including post-effective amendments) and supplements to the
Registration Statement(s) and the prospectus(es) used in connection with the
Registration Statement(s), which prospectus(es) are to be filed pursuant to
Rule 424 promulgated under the 1933 Act, as may be necessary to keep the
Registration Statement(s) effective at all times during the Registration
Period, and, during such period, comply with the provisions of the 1933 Act
with respect to the disposition of all Registrable Securities of the Company
covered by the Registration Statement(s) until such time as all of such
Registrable Securities shall have been disposed of in accordance with the
intended methods of disposition by the seller or sellers thereof as set forth
in the Registration Statement(s).  In the event the number of shares available
under a Registration Statement filed pursuant to this Agreement is insufficient
to cover all of the Registrable Securities, the Company shall amend the
Registration Statement, or file a new Registration Statement (on the short form
available therefor, if applicable), or both, so as to cover all of the
Registrable Securities, in each case, as soon as practicable, but in any event
within twenty (20) days after the necessity therefor arises (based on the
market price of the Common Stock and other relevant factors on which the
Company reasonably elects to rely).  The Company shall use it best efforts to
cause such amendment and/or new Registration Statement to become effective as
soon as practicable





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following the filing thereof.  For purposes of the foregoing provision, the
number of shares available under a Registration Statement shall be deemed
"insufficient to cover all of the Registrable Securities" if at any time the
number of Registrable Securities issued or issuable upon conversion of the
Series C Preferred Shares is greater than the quotient determined by dividing
(i) the number of shares of Common Stock available for resale under such
Registration Statement by (ii) 1.50; provided that in the case of the initial
registration of the Registrable Securities pursuant to Section 2(a), the
Company shall be required to register at least 17,000,000 shares of Common
Stock for resale.  For purposes of the calculation set forth in the foregoing
sentence, any restrictions on the convertibility of the Series C Preferred
Shares shall be disregarded and such calculation shall assume that the Series C
Preferred Shares are then convertible into shares of Common Stock at the then
prevailing Conversion Rate (as defined in the Company's Amended Certificate of
Incorporation).

                 c.       The Company shall furnish to each Investor whose
Registrable Securities are included in the Registration Statement(s) and its
legal counsel without charge (i) promptly after the same is prepared and filed
with the SEC at least one copy of the Registration Statement and any amendment
thereto, including financial statements and schedules, all documents
incorporated therein by reference and all exhibits, the prospectus(es) included
in such Registration Statement(s) (including each preliminary prospectus) and,
with regards to the Registration Statement, any correspondence by or on behalf
of the Company to the SEC or the staff of the SEC and any correspondence from
the SEC or the staff of the SEC to the Company or its representatives, (ii)
upon the effectiveness of any Registration Statement, ten (10) copies of the
prospectus included in such Registration Statement and all amendments and
supplements thereto (or such other number of copies as such Investor may
reasonably request) and (iii) such other documents, including any preliminary
prospectus, as such Investor may reasonably request in order to facilitate the
disposition of the Registrable Securities owned by such Investor.

                 d.       The Company shall use reasonable efforts to (i)
register and qualify the Registrable Securities covered by the Registration
Statement(s) under such other securities or "blue sky" laws of such
jurisdictions in the United States as any Investor reasonably requests, (ii)
prepare and file in those jurisdictions. such amendments (including
post-effective amendments) and supplements to such registrations and
qualifications as may be necessary to maintain the effectiveness thereof during
the Registration Period, (iii) take such other actions as may be necessary to
maintain such registrations and qualifications in effect at all times during
the Registration Period, and (iv) take all other actions reasonably necessary
or advisable to qualify the Registrable Securities for sale in such
jurisdictions; provided, however, that the Company shall not be required in
connection therewith or as a condition thereto to (a) qualify to do business in
any jurisdiction where it would not otherwise be required to qualify but for
this Section 3(d), (b) subject itself to general taxation in any such
jurisdiction, or (c) file a general consent to service of process in any such
jurisdiction.  The Company shall promptly notify each Investor who holds
Registrable Securities of the receipt by the Company of any notification with
respect to the suspension of the registration or qualification of any of the
Registrable Securities for sale under the securities or "blue sky" laws of any
jurisdiction in the United States or its receipt of actual notice of the
initiation or threatening of any proceeding for such purpose.

                 e.       In the event Investors who hold a majority of the
Registrable Securities being offered in an offering select underwriters for the
offering, the Company shall enter into





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and perform its obligations under an underwriting agreement, in usual and
customary form, including, without limitation, customary indemnification and
contribution obligations, with the underwriters of such offering.

                 f.       As promptly as practicable after becoming aware of
such event, the Company shall notify each Investor in writing of the happening
of any event, of which the Company has knowledge, as a result of which the
prospectus included in a Registration Statement, as then in effect, includes an
untrue statement of a material fact or omission to state a material fact
required to be stated therein or necessary to make the statements therein, in
light of the circumstances under which they were made, not misleading, and
promptly prepare a supplement or amendment to the Registration Statement to
correct such untrue statement or omission, and deliver ten (10) copies of such
supplement or amendment to each Investor (or such other number of copies as
such Investor may reasonably request).  The Company shall also promptly notify
each Investor in writing (i) when a prospectus or any prospectus supplement or
post-effective amendment has been filed, and when a Registration Statement or
any post-effective amendment has become effective (notification of such
effectiveness shall be delivered to each Investor by facsimile on the same day
of such effectiveness and by overnight mail), (ii) of any request by the SEC
for amendments or supplements to a Registration Statement or related prospectus
or related information, and (iii) of the Company's reasonable determination
that a post-effective amendment to a Registration Statement would be
appropriate.  Notwithstanding anything to the contrary in this Section 3(f),
not more than once in any twelve (12) month period, for up to a period of
thirty (30) days, the Company may delay the disclosure of material non-public
information concerning the Company the disclosure of which at the time is not,
in the good faith opinion of the Board of Directors of the Company, in the best
interest of the Company and, in the opinion of counsel to the Company,
otherwise required (an "ALLOWED DELAY"); provided, further, that the Company
shall promptly (i) notify the Investors in writing of the existence of material
non-public information giving rise to an Allowed Delay, (ii) provide the
Investors such opinions in writing and (iii) advise the Investors in writing to
cease all sales under the Registration Statement until the end of the Allowed
Delay.  The provisions of Section 2(c) of the Certificate of Designations shall
not be applicable during the period of an Allowed Delay.  Upon expiration of
the Allowed Delay, the Company shall again be bound by the first sentence of
this Section 3(f) with respect to the information giving rise thereto.

                 g.       The Company shall use its best efforts to prevent the
issuance of any stop order or other suspension of effectiveness of a
Registration Statement, or the suspension of the qualification of any of the
Registrable Securities for sale in any jurisdiction and, if such an order or
suspension is issued, to obtain the withdrawal of such order or suspension at
the earliest possible moment and to notify each Investor who holds Registrable
Securities being sold (and, in the event of an underwritten offering, the
managing underwriters) of the issuance of such order and the resolution thereof
or its receipt of actual notice of the initiation or threat of any proceeding
for such purpose.

                 h.       The Company shall permit the Investors and a single
firm of counsel, initially Katten Muchin & Zavis or such other counsel as
thereafter designated as selling stockholders' counsel by the Investors who
hold a majority of the Registrable Securities being sold, to review and comment
upon the Registration Statement(s) and all amendments and





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supplements thereto at least seven (7) days prior to their filing with the SEC,
and not file any document in a form to which such counsel reasonably objects.
The Company shall not submit a request for acceleration of the effectiveness of
a Registration Statement(s) or any amendment or supplement thereto without the
prior approval of such counsel, which consent shall not be unreasonably
withheld.

                 i.       At the request of the Investors who hold a majority
of the Registrable Securities being sold, the Company shall furnish, on the
date that Registrable Securities are delivered to an underwriter, if any, for
sale in connection with the Registration Statement (i) if required by an
underwriter, a letter, dated such date, from the Company's independent
certified public accountants in form and substance as is customarily given by
independent certified public accountants to underwriters in an underwritten
public offering, addressed to the underwriters, and (ii) an opinion, dated as
of such date, of counsel representing the Company for purposes of such
Registration Statement, in form, scope and substance as is customarily given in
an underwritten public offering, addressed to the underwriters and the
Investors.

                 j.       The Company shall make available for inspection by
(i) any Investor, (ii) any underwriter participating in any disposition
pursuant to a Registration Statement, (iii) one firm of attorneys and one firm
of accountants or other agents retained by the Investors, and (iv) one firm of
attorneys retained by all such underwriters (collectively, the "INSPECTORS")
all pertinent financial and other records, and pertinent corporate documents
and properties of the Company (collectively, the "RECORDS"), as shall be
reasonably deemed necessary by each Inspector to enable each Inspector to
exercise its due diligence responsibility, and cause the Company's officers,
directors and employees to supply all information which any Inspector may
reasonably request for purposes of such due diligence; provided, however, that
each Inspector shall hold in strict confidence and shall not make any
disclosure (except to an Investor) or use of any Record or other information
which the Company determines in good faith to be confidential, and of which
determination the Inspectors are so notified, unless (a) the disclosure of such
Records is necessary to avoid or correct a misstatement or omission in any
Registration Statement or is otherwise required under the 1933 Act, (b) the
release of such Records is ordered pursuant to a final, non-appealable subpoena
or order from a court or government body of competent jurisdiction, or (c) the
information in such Records has been made generally available to the public
other than by disclosure in violation of this or any other agreement.  Each
Investor agrees that it shall, upon learning that disclosure of such Records is
sought in or by a court or governmental body of competent jurisdiction or
through other means, give prompt notice to the Company and allow the Company,
at its expense, to undertake appropriate action to prevent disclosure of, or to
obtain a protective order for, the Records deemed confidential.

                 k.       The Company shall hold in confidence and not make any
disclosure of information concerning an Investor provided to the Company unless
(i) disclosure of such information is necessary to comply with federal or state
securities laws, (ii) the disclosure of such information is necessary to avoid
or correct a misstatement or omission in any Registration Statement, (iii) the
release of such information is ordered pursuant to a subpoena or other final,
non-appealable order from a court or governmental body of competent
jurisdiction, or (iv) such information has been made generally available to the
public other than by disclosure in violation of this or any other agreement.
The Company agrees that it shall, upon learning that disclosure of such
information concerning an Investor is sought in or by a court or governmental
body of





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competent jurisdiction or through other means, give prompt written notice to
such Investor and allow such Investor, at the Investor's expense, to undertake
appropriate action to prevent disclosure of, or to obtain a protective order
for, such information.

                 l.       The Company shall use its best efforts either to (i)
cause all the Registrable Securities covered by a Registration Statement to be
listed on each national securities exchange on which securities of the same
class or series issued by the Company are then listed, if any, if the listing
of such Registrable Securities is then permitted under the rules of such
exchange, or (ii) secure designation and quotation of all the Registrable
Securities covered by the Registration Statement on the Nasdaq National Market
System or, if, despite the Company's best efforts to satisfy the preceding
clause (i) or (ii), the Company is unsuccessful in satisfying the preceding
clause (i) or (ii), to secure the inclusion for quotation on the Nasdaq
SmallCap Market for such Registrable Securities and, without limiting the
generality of the foregoing, to arrange for at least two market makers to
register with the National Association of Securities Dealers, Inc. ("NASD") as
such with respect to such Registrable Securities.  The Company shall pay all
fees and expenses in connection with satisfying its obligation under this
Section 3(1).

                 m.       The Company shall cooperate with the Investors who
hold Registrable Securities being offered and, to the extent applicable, any
managing underwriter or underwriters, to facilitate the timely preparation and
delivery of certificates (not bearing any restrictive legend) representing the
Registrable Securities to be offered pursuant to a Registration Statement and
enable such certificates to be in such denominations or amounts, as the case
may be, as the managing underwriter or underwriters, if any, or, if there is no
managing underwriter or underwriters, the Investors may reasonably request and
registered in such names as the managing underwriter or underwriters, if any,
or the Investors may request.  Not later than the date on which any
Registration Statement registering the resale of Registrable Securities is
declared effective, the Company shall deliver to its transfer agent
instructions, accompanied by any reasonably required opinion of counsel, that
permit sales of unlegended securities in a timely fashion that complies with
then mandated securities settlement procedures for regular way market
transactions.

                 n.       The Company shall take all other reasonable actions
necessary to expedite and facilitate disposition by the Investors of
Registrable Securities pursuant to a Registration Statement.

                 o.       The Company shall provide a transfer agent and
registrar of all such Registrable Securities not later than the effective date
of such Registration Statement.

                 p.       If requested by the managing underwriters or an
Investor, the Company shall immediately incorporate in a prospectus supplement
or post-effective amendment such information as the managing underwriters and
the Investors agree should be included therein relating to the sale and
distribution of Registrable Securities, including, without limitation,
information with respect to the number of Registrable Securities being sold to
such underwriters, the purchase price being paid therefor by such underwriters
and with respect to any other terms of the underwritten (or best efforts
underwritten) offering of the Registrable Securities to be sold in such
offering; make all required filings of such prospectus supplement or
post-effective amendment as soon as notified of the matters to be incorporated
in such prospectus supplement





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or post-effective amendment; and supplement or make amendments to any
Registration Statement if requested by a shareholder or any underwriter of such
Registrable Securities.

                 q.       The Company shall use its best efforts to cause the
Registrable Securities covered by the applicable Registration Statement to be
registered with or approved by such other governmental agencies or authorities
as may be necessary to consummate the disposition of such Registrable
Securities.

                 r.       The Company shall otherwise use its best efforts to
comply with all applicable rules and regulations of the SEC in connection with
any registration hereunder.

         4.      OBLIGATIONS OF THE INVESTORS.

                 a.       At least seven (7) days prior to the first
anticipated filing date of the Registration Statement, the Company shall notify
each Investor in writing of the information the Company requires from each such
Investor if such Investor elects to have any of such Investor's Registrable
Securities included in the Registration Statement.  It shall be a condition
precedent to the obligations of the Company to complete the registration
pursuant to this Agreement with respect to the Registrable Securities of a
particular Investor that such Investor shall furnish to the Company such
information regarding itself, the Registrable Securities held by it and the
intended method of disposition of the Registrable Securities held by it as
shall be reasonably required to effect the registration of such Registrable
Securities and shall execute such documents in connection with such
registration as the Company may reasonably request.

                 b.       Each Investor by such Investor's acceptance of the
Registrable Securities agrees to cooperate with the Company as reasonably
requested by the Company in connection with the preparation and filing of the
Registration Statement(s) hereunder, unless such Investor has notified the
Company in writing of such Investor's election to exclude all of such
Investor's Registrable Securities from the Registration Statement.

                 c.       In the event Investors holding a majority of the
Registrable Securities being registered determine to engage the services of an
underwriter, each Investor agrees to enter into and perform such Investor's
obligations under an underwriting agreement, in usual and customary form,
including, without limitation, customary indemnification and contribution
obligations, with the managing underwriter of such offering and take such other
actions as are reasonably required in order to expedite or facilitate the
disposition of the Registrable Securities, unless such Investor notifies the
Company in writing of such Investor's election to exclude all of such
Investor's Registrable Securities from the Registration Statement(s).

                 d.       Each Investor agrees that, upon receipt of any notice
from the Company of the happening of any event of the kind described in Section
3(g) or the first sentence of 3(f), such Investor will immediately discontinue
disposition of Registrable Securities pursuant to the Registration Statement(s)
covering such Registrable Securities until such Investor's receipt of the
copies of the supplemented or amended prospectus contemplated by Section 3(g)
or the first sentence of 3(f) and, if so directed by the Company, such Investor
shall deliver to the Company (at the expense of the Company) or destroy all
copies in such Investor's possession, of the prospectus covering such
Registrable Securities current at the time of receipt of such notice.





                                      -9-
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                 e.       No Investor may participate in any underwritten
registration hereunder unless such Investor (i) agrees to sell such Investor's
Registrable Securities on the basis provided in any underwriting arrangements
approved by the Investors entitled hereunder to approve such arrangements, (ii)
completes and executes all questionnaires, powers of attorney, indemnities,
underwriting agreements and other documents reasonably required under the terms
of such underwriting arrangements, and (iii) agrees to pay its pro rata share
of all underwriting discounts and commissions.

         5.      EXPENSES OF REGISTRATION.

                 All reasonable expenses, other than underwriting discounts and
commissions, incurred in connection with registrations, filings or
qualifications pursuant to Sections 2 and 3, including, without limitation, all
registration, listing and qualifications fees, printers and accounting fees,
and fees and disbursements of counsel for the Company and fees and
disbursements of one counsel for the Investors, shall be borne by the Company.

         6.      INDEMNIFICATION.

                 In the event any Registrable Securities are included in a
Registration Statement under this Agreement:

                 a.       To the fullest extent permitted by law, the Company
will, and hereby does, indemnify, hold harmless and defend each Investor who
holds such Registrable Securities, the directors, officers, partners,
employees, agents and each Person, if any, who controls any Investor within the
meaning of the 1933 Act or the Securities Exchange Act of 1934, as amended (the
"1934 ACT"), and any underwriter (as defined in the 1933 Act) for the
Investors, and the directors and officers of, and each Person, if any, who
controls, any such underwriter within the meaning of the 1933 Act or the 1934
Act (each, an "INDEMNIFIED PERSON"), against any losses, claims, damages,
liabilities, judgments, fines, penalties, charges, costs, attorneys' fees,
amounts paid in settlement or expenses, joint or several, (collectively,
"CLAIMS") incurred in investigating, preparing or defending any action, claim,
suit, inquiry, proceeding, investigation or appeal taken from the foregoing by
or before any court or governmental, administrative or other regulatory agency,
body or the SEC, whether pending or threatened, whether or not an indemnified
party is or may be a party thereto ("INDEMNIFIED DAMAGES"), to which any of
them may become subject insofar as such Claims (or actions or proceedings,
whether commenced or threatened, in respect thereof) arise out of or are based
upon: (i) any untrue statement or alleged untrue statement of a material fact
in a Registration Statement or any post-effective amendment thereto or in any
filing made in connection with the qualification of the offering under the
securities or other "blue sky" laws of any jurisdiction in which Registrable
Securities are offered ("BLUE SKY FILING"), or the omission or alleged omission
to state a material fact required to be stated therein or necessary to make the
statements therein, in light of the circumstances under which the statements
therein were made, not misleading, (ii) any untrue statement or alleged untrue
statement of a material fact contained in any preliminary prospectus if used
prior to the effective date of such Registration Statement, or contained in the
final prospectus (as amended or supplemented, if the Company files any
amendment thereof or supplement thereto with the SEC) or the omission or
alleged omission to state therein any material fact necessary to make the
statements made therein, in light of the circumstances under which the
statements therein





                                      -10-
   11
were made, not misleading, or (iii) any violation or alleged violation by the
Company of the 1933 Act, the 1934 Act, any other law, including, without
limitation, any state securities law, or any rule or regulation thereunder
relating to the offer or sale of the Registrable Securities pursuant to a
Registration Statement (the matters in the foregoing clauses (i) through (iii)
being, collectively, "VIOLATIONS").  Subject to the restrictions set forth in
Section 6(d) with respect to the number of legal counsel, the Company shall
reimburse the Investors and each such underwriter or controlling person,
promptly as such expenses are incurred and are due and payable, for any legal
fees or other reasonable expenses incurred by them in connection with
investigating or defending any such Claim.  Notwithstanding anything to the
contrary contained herein, the indemnification agreement contained in this
Section 6(a): (i) shall not apply to a Claim arising out of or based upon a
Violation which occurs in reliance upon and in conformity with information
furnished in writing to the Company by any Indemnified Person or underwriter
for such Indemnified Person expressly for use in connection with the
preparation of the Registration Statement or any such amendment thereof or
supplement thereto, if such prospectus was timely made available by the Company
pursuant to Section 3(c); (ii) with respect to any preliminary prospectus,
shall not inure to the benefit of any such person from whom the person
asserting any such Claim purchased the Registrable Securities that are the
subject thereof (or to the benefit of any person controlling such person) if
the untrue statement or omission of material fact contained in the preliminary
prospectus was corrected in the prospectus, as then amended or supplemented, if
such prospectus was timely made available by the Company pursuant to Section
3(c), and the Indemnified Person was promptly advised in writing not to use the
incorrect prospectus prior to the use giving rise to a violation and such
Indemnified Person, notwithstanding such advice, used it; (iii) shall not be
available to the extent such Claim is based on a failure of the Investor to
deliver or to cause to be delivered the prospectus made available by the
Company; and (iv) shall not apply to amounts paid in settlement of any Claim if
such settlement is effected without the prior written consent of the Company,
which consent shall not be unreasonably withheld.  Such indemnity shall remain
in full force and effect regardless of any investigation made by or on behalf
of the Indemnified Person and shall survive the transfer of the Registrable
Securities by the Investors pursuant to Section 9.

                 b.       In connection with any Registration Statement in
which an Investor is participating, each such Investor agrees to severally and
not jointly indemnify, hold harmless and defend, to the same extent and in the
same manner as is set forth in Section 6(a), the Company, each of its
directors, each of its officers who signs the Registration Statement, each
Person, if any, who controls the Company within the meaning of the 1933 Act or
the 1934 Act (collectively and together with an Indemnified Person, an
"INDEMNIFIED PARTY"), against any Claim or Indemnified Damages to which any of
them may become subject, under the 1933 Act, the 1934 Act or otherwise, insofar
as such Claim or Indemnified Damages arise out of or are based upon any
Violation, in each case to the extent, and only to the extent, that such
Violation occurs in reliance upon and in conformity with written information
furnished to the Company by such Investor expressly for use in connection with
such Registration Statement; and, subject to Section 6(d), such Investor will
reimburse any legal or other expenses reasonably incurred by them in connection
with investigating or defending any such Claim; provided, however, that the
indemnity agreement contained in this Section 6(b) and Section 7 shall not
apply to amounts paid in settlement of any Claim if such settlement is effected
without the prior written consent of such Investor, which consent shall not be
unreasonably withheld; provided, further, however, that the Investor shall be
liable under this Section 6(b) for only that amount of a Claim or





                                      -11-
   12
Indemnified Damages as does not exceed the net proceeds to such Investor as a
result of the sale of Registrable Securities pursuant to such Registration
Statement.  Such indemnity shall remain in full force and effect regardless of
any investigation made by or on behalf of such Indemnified Party and shall
survive the transfer of the Registrable Securities by the Investors pursuant to
Section 9.  Notwithstanding anything to the contrary contained herein, the
indemnification agreement contained in this Section 6(b) with respect to any
preliminary prospectus shall not inure to the benefit of any Indemnified Party
if the untrue statement or omission of material fact contained in the
preliminary prospectus was corrected on a timely basis in the prospectus, as
then amended or supplemented.

                 c.       The Company shall be entitled to receive indemnities
from underwriters, selling brokers, dealer managers and similar securities
industry professionals participating in any distribution, to the same extent as
provided above, with respect to information such persons so furnished in
writing expressly for inclusion in the Registration Statement.

                 d.       Promptly after receipt by an Indemnified Person or
Indemnified Party under this Section 6 of notice of the commencement of any
action or proceeding (including any governmental action or proceeding)
involving a Claim, such Indemnified Person or Indemnified Party shall, if a
Claim in respect thereof is to be made against any indemnifying party under
this Section 6, deliver to the indemnifying party a written notice of the
commencement thereof, and the indemnifying party shall have the right to
participate in, and, to the extent the indemnifying party so desires, jointly
with any other indemnifying party similarly noticed, to assume control of the
defense thereof with counsel mutually satisfactory to the indemnifying party
and the Indemnified Person or the Indemnified Party, as the case may be;
provided, however, that an Indemnified Person or Indemnified Party shall have
the right to retain its own counsel with the fees and expenses to be paid by
the indemnifying party, if, in the reasonable opinion of counsel retained by
the indemnifying party, the representation by such counsel of the Indemnified
Person or Indemnified Party and the indemnifying party would be inappropriate
due to actual or potential differing interests between such Indemnified Person
or Indemnified Party and any other party represented by such counsel in such
proceeding.  The Company shall pay reasonable fees for only one separate legal
counsel for the Investors, and such legal counsel shall be selected by the
Investors holding a majority in interest of the Registrable Securities included
in the Registration Statement to which the Claim relates.  The Indemnified
Party or Indemnified Person shall cooperate fully with the indemnifying party
in connection with any negotiation or defense of any such action or claim by
the indemnifying party and shall furnish to the indemnifying party all
information reasonably available to the Indemnified Party or Indemnified Person
which relates to such action or claim.  The indemnifying party shall keep the
Indemnified Party or Indemnified Person fully apprised at all times as to the
status of the defense or any settlement negotiations with respect thereto.  No
indemnifying party shall be liable for any settlement of any action, claim or
proceeding effected without its written consent, provided, however, that the
indemnifying party shall not unreasonably withhold, delay or condition its
consent.  No indemnifying party shall, without the consent of the Indemnified
Party or Indemnified Person, consent to entry of any judgment or enter into any
settlement or other compromise which does not include as an unconditional term
thereof the giving by the claimant or plaintiff to such Indemnified Party or
Indemnified Person of a release from all liability in respect to such claim or
litigation.  Following indemnification as provided for hereunder, the
indemnifying party shall be subrogated to all rights of the Indemnified Party
or Indemnified Person with respect to all





                                      -12-
   13
third parties, firms or corporations relating to the matter for which
indemnification has been made.  The failure to deliver written notice to the
indemnifying party within a reasonable time of the commencement of any such
action shall not relieve such indemnifying party of any liability to the
Indemnified Person or Indemnified Party under this Section 6, except to the
extent that the indemnifying party is prejudiced in its ability to defend such
action.

                 e.       The indemnification required by this Section 6 shall
be made by periodic payments of the amount thereof during the course of the
investigation or defense, as and when bills are received or Indemnified Damages
are incurred.

                 f.       The indemnity agreements contained herein shall be in
addition to (i) any cause of action or similar right of the Indemnified Party
or Indemnified Person against the indemnifying party or others, and (ii) any
liabilities the indemnifying party may be subject to pursuant to the law.

         7.      CONTRIBUTION.

                 To the extent any indemnification by an indemnifying party is
prohibited or limited by law, the indemnifying party agrees to make the maximum
contribution with respect to any amounts for which it would otherwise be liable
under Section 6 to the fullest extent permitted by law; provided, however,
that:  (i) no contribution shall be made under circumstances where the maker
would not have been liable for indemnification under the fault standards set
forth in Section 6; (ii) no seller of Registrable Securities guilty of
fraudulent misrepresentation (within the meaning of Section 11(f) of the 1933
Act) shall be entitled to contribution from any seller of Registrable
Securities who was not guilty of fraudulent misrepresentation; and (iii)
contribution by any seller of Registrable Securities shall be limited in amount
to the net amount of proceeds received by such seller from the sale of such
Registrable Securities.

         8.      REPORTS UNDER THE 1934 ACT.

                 With a view to making available to the Investors the benefits
of Rule 144 promulgated under the 1933 Act or any other similar rule or
regulation of the SEC that may at any time permit the investors to sell
securities of the Company to the public without registration ("RULE 144"), the
Company agrees to:

                 a.       make and keep public information available, as those
terms are understood and defined in Rule 144;

                 b.       file with the SEC in a timely manner all reports and
other documents required of the Company under the 1933 Act and the 1934 Act so
long as the Company remains subject to such requirements (it being understood
that nothing herein shall limit the Company's obligations under Section 4(c) of
the Securities Purchase Agreement) and the filing of such reports and other
documents is required for the applicable provisions of Rule 144; and

                 c.       furnish to each Investor so long as such Investor
owns Registrable Securities, promptly upon request, (i) a written statement by
the Company that it has complied





                                      -13-
   14
with the reporting requirements of Rule 144, the 1933 Act and the 1934 Act,
(ii) a copy of the most recent annual or quarterly report of the Company and
such other reports and documents so filed by the Company, and (iii) such other
information as may be reasonably requested to permit the investors to sell such
securities pursuant to Rule 144 without registration.

         9.      ASSIGNMENT OF REGISTRATION RIGHTS.

                 The rights to have the Company register Registrable Securities
pursuant to this Agreement shall be automatically assignable by the Investors
to any transferee of all or any portion of Registrable Securities if: (i) the
Investor agrees in writing with the transferee or assignee to assign such
rights, and a copy of such agreement is furnished to the Company within a
reasonable time after such assignment; (ii) the Company is, within a reasonable
time after such transfer or assignment, furnished with written notice of (a)
the name and address of such transferee or assignee, and (b) the securities
with respect to which such registration rights are being transferred or
assigned; (iii) immediately following such transfer or assignment the further
disposition of such securities by the transferee or assignee is restricted
under the 1933 Act and applicable state securities laws; (iv) at or before the
time the Company receives the written notice contemplated by clause (ii) of
this sentence the transferee or assignee agrees in writing with the Company to
be bound by all of the provisions contained herein; (v) such transfer shall
have been made in accordance with the applicable requirements of the Securities
Purchase Agreement; (vi) such transferee shall be an "accredited investor" as
that term is defined in Rule 501 of Regulation D promulgated under the 1933
Act; and (vii) in the event the assignment occurs subsequent to the date of
effectiveness of the Registration Statement required to be filed pursuant to
Section 2(a), the transferee agrees to pay all reasonable expenses of amending
or supplementing such Registration Statement to reflect such assignment.

         10.     AMENDMENT OF REGISTRATION RIGHTS.

                 Provisions of this Agreement may be amended and the observance
thereof may be waived (either generally or in a particular instance and either
retroactively or prospectively), only with the written consent of the Company
and Investors who hold two-thirds (2/3) of the Registrable Securities.  Any
amendment or waiver effected in accordance with this Section 10 shall be
binding upon each Investor and the Company.

         11.     MISCELLANEOUS.

                 a.       A person or entity is deemed to be a holder of
Registrable Securities whenever such person or entity owns of record such
Registrable Securities.  If the Company receives conflicting instructions,
notices or elections from two or more persons or entities with respect to the
same Registrable Securities, the Company shall act upon the basis of
instructions, notice or election received from the registered owner of such
Registrable Securities.

                 b.       Any notices consents, waivers or other communications
required or permitted to be given under the terms of this Agreement must be in
writing and will be deemed to have been delivered (i) upon receipt, when
delivered personally; (ii) upon receipt, when sent by facsimile, provided a
copy is mailed by U.S. certified mail, return receipt requested; (iii) three
(3) days after being sent by U.S.  certified mail, return receipt requested, or
(d) one (1) day





                                      -14-
   15
after deposit with a nationally recognized overnight delivery service, in each
case properly addressed to the party to receive the same.  The addresses and
facsimile numbers for such communications shall be:

                 if to the Company:

                          166 Baypointe Parkway
                          San Jose, California  95134
                          Telephone:  (408) 468-1800
                          Facsimile:  (408) 468-1619
                          Attention:  President

                 with a copy to:

                          Cooley Godward LLP
                          3000 El Camino Real
                          5 Palo Alto Square
                          Palo Alto, California  94306
                          Telephone:  (415) 843-5000
                          Facsimile:  (415) 857-0663
                          Attention:  Andrei Manoliu

                 if to a Buyer, to its address and facsimile number on Schedule
                 A attached hereto, with copies to such Buyer's counsel as set
                 forth on Schedule A.

         Each party shall provide five (5) days prior notice to the other party
of any change in address, phone number or facsimile number.

                 c.       Failure of any party to exercise any right or remedy
under this Agreement or otherwise, or delay by a party in exercising such right
or remedy, shall not operate as a waiver thereof.

                 d.       This Agreement shall be governed by and interpreted
in accordance with the laws of the State of California without regard to the
principles of conflict of laws.  If any provision of this Agreement shall be
invalid or unenforceable in any jurisdiction, such invalidity or
unenforceability shall not affect the validity or enforceability of the
remainder of this Agreement in that jurisdiction or the validity or
enforceability of any provision of this Agreement in any other jurisdiction.

                 e.       This Agreement and the Securities Purchase Agreement
constitute the entire agreement among the parties hereto with respect to the
subject matter hereof and thereof.  There are no restrictions, promises,
warranties or undertakings, other than those set forth or referred to herein
and therein.  This Agreement and the Securities Purchase Agreement supersede
all prior agreements and understandings among the parties hereto with respect
to the subject matter hereof and thereof.





                                      -15-
   16
                 f.       Subject to the requirements of Section 9, this
Agreement shall inure to the benefit of and be binding upon the permitted
successors and assigns of each of the parties hereto.

                 g.       The headings in this Agreement are for convenience of
reference only and shall not limit or otherwise affect the meaning hereof.

                 h.       This Agreement may be executed in two or more
identical counterparts, each of which shall be deemed an original but all of
which shall constitute one and the same agreement.  This Agreement, once
executed by a party, may be delivered to the other party hereto by facsimile
transmission of a copy of this Agreement bearing the signature of the party so
delivering this Agreement.

                 i.       Each party shall do and perform, or cause to be done
and performed, all such further acts and things, and shall execute and deliver
all such other agreements, certificates, instruments and documents, as the
other party may reasonably request in order to carry out the intent and
accomplish the purposes of this Agreement and the consummation of the
transactions contemplated hereby.





                                      -16-
   17
         IN WITNESS WHEREOF, the parties have caused this Registration Rights
Agreement to be duly executed as of day and year first above written.




COMPANY:                               BUYERS:

JTS CORPORATION                        NELSON PARTNERS


By:                                    By: 
   --------------------------             -----------------------------
Name:      David T. Mitchell           Name:     Anne Dupuy
Its:       President and               Its:      Officer
           Chief Executive Officer


                                       OLYMPUS SECURITIES, LTD.


                                       By:
                                          ----------------------------
                                       Name: Anne Dupuy
                                       Its:  Alternate Director


                                       RGC INTERNATIONAL INVESTORS, LDC

                                       By:   Rose Glen Capital Management, L.P.,
                                             as Investment Manager

                                       By:   RGC General Partners Corp.,
                                             as General Partner


                                       By:
                                          ----------------------------
                                       Name:  Wayne Bloch
                                       Its:   Managing Director


                                       CAPITAL VENTURES INTERNATIONAL

                                       By:    Bala International, Inc.,
                                              as agent

                                       By:
                                          ----------------------------
                                       Name:  Andrew Frost
                                       Its:   Director
   18
                                   SCHEDULE A

                                     BUYERS




                                          Investor Address                    Investor's Legal Counsel
     Investor Name                      and Facsimile Number                   and Counsel's Address
- ----------------------             -------------------------------          ---------------------------------
                                                                      
Nelson Partners                    c/oLeeds Management Services             Citadel Investment Group, L.L.C.
                                   129 Front Street, 5th Floor              225 West Washington Street
                                   Hamilton HM12 Bermuda                    Chicago, Illinois 60606
                                   Attn:  Anne Dupuy                        Attention: Kenneth C. Griffin
                                   Facsimile: (441) 292-2239                         Kenneth A. Simpler
                                                                            Facsimile: (312) 368-1348
                                                                            Katten Muchin & Zavis
                                                                            525 W. Monroe Street
                                                                            Chicago, Illinois 60661-3693
                                                                            Attention: Matthew S. Brown, Esq.
                                                                                     Robert J. Brantman, Esq.
                                                                            Facsimile: (312) 902-1061

Olympus Securities, Ltd.           c/oLeeds Management Services             Citadel Investment Group, L.L.C.
                                   129 Front Street, 5th Floor              225 West Washington Street
                                   Hamilton HM12 Bermuda                    Chicago, Illinois 60606
                                   Attn:  Anne Dupuy                        Attention: Kenneth C. Griffin
                                   Facsimile: (441) 292-2239                         Kenneth A. Simpler
                                                                            Facsimile: (312) 368-1348

                                                                            Katten Muchin & Zavis
                                                                            525 W. Monroe Street
                                                                            Chicago, Illinois 60661-3693
                                                                            Attention: Matthew S. Brown, Esq.
                                                                                     Robert J. Brantman, Esq.
                                                                            Facsimile: (312) 902-1061

RGC International Investors,       c/o Rose Glen Capital Management,
LDC                                L.P.
                                   440 East Swedesford Road
                                   Suite 2025
                                   Wayne, Pennsylvania  19087
                                   Attn:  Wayne Bloch
                                   Facsimile: (610) 971-2212
                                   Residency:  Cayman Islands

Capital Ventures International     c/o Bala International Inc.
                                   401 City Avenue
                                   Bala Cynwyd, Pennsylvania 19004
                                   Attn: Michael Spolan
                                   Facsimile: (610) 617-2707
                                   Residency:  Cayman Islands