EXHIBIT 5

                               September 26, 1996

Iron Mountain Incorporated
745 Atlantic Avenue
Boston, Massachusetts 02111

        Re: Registration Statement on Form S-1
            $165,000,000 of Senior Subordinated Notes due 2006

Ladies and Gentlemen:

   The following opinion is furnished to you in connection with the registration
pursuant to a registration statement on Form S-1 (the "Registration Statement")
under the Securities Act of 1933, as amended (the "Securities Act"), by Iron
Mountain Incorporated, a Delaware corporation (the "Company"), of $165,000,000
of Senior Subordinated Notes due 2006 (the "Notes"), which Notes will initially
be guaranteed (the "Guarantees") by each of the Company's direct and indirect
wholly owned subsidiaries (collectively, the "Subsidiary Guarantors") and issued
under an indenture relating to the Notes (the "Indenture") by and among the
Company, the Subsidiary Guarantors and First Bank National Association, as
Trustee (the "Trustee"). The Registration Statement incorporates by reference
the registration statement on Form S-1 (File No 333-10359) which we have been
advised has been declared effective by the Securities and Exchange Commission
earlier today (the "Original Registration Statement"). 

   We have acted as counsel to the Company in connection with the preparation of
the Registration Statement and the Original Registration Statement, and we have
examined originals or copies, certified or otherwise identified to our
satisfaction, of corporate records, certificates and statements of officers and
accountants of the Company, of public officials, and such other documents as we
have considered necessary in order to furnish the opinion hereinafter set forth.
We express no opinion herein as to any laws other than the General Corporation
Law of the State of Delaware and the Laws of the Commonwealth of Massachusetts
and the State of New York. Insofar as the opinions herein pertain to matters of
California law relating to Hollywood Property, Inc., a California corporation
and a Subsidiary Guarantor ("HPI"), we have with your consent relied upon the
opinion of Nossaman, Guthner, Knox & Elliott, California counsel to HPI. 



Iron Mountain Incorporated
September 26, 1996
Page 2


   Based upon and subject to the foregoing, we are of the opinion that the
Company and the Subsidiary Guarantors have taken all necessary action to approve
the Indenture and the terms of the Notes and Guarantees, and when (i) the
Registration Statement has become effective under the Securities Act, (ii) the
Indenture has been duly executed and delivered by the Company, the Subsidiary
Guarantors and the Trustee and the Notes have been duly executed by the Company
and authenticated by the Trustee and the Guarantees have been duly executed by
the Subsidiary Guarantors in accordance with the provisions of the Indenture,
(iii) the Indenture has been qualified under the Trust Indenture Act of 1939, as
amended, and (iv) the Notes with the Guarantees affixed thereto have been
delivered to the purchasers thereof against payment of the purchase price
therefor as described in the Registration Statement, the Notes and the
Guarantees will be validly issued and binding obligations of the Company and the
Subsidiary Guarantors, respectively, subject in each case to the effect of (a)
bankruptcy, insolvency, reorganization, moratorium or other similar laws
relating to or affecting the rights and remedies of creditors and the
obligations of debtors generally and (b) the application of general principles
of equity (regardless of whether enforcement is considered in proceedings at law
or in equity). 

   We express no opinion as to the applicability (and, if applicable, the
effect) of Section 548 of the United States Bankruptcy Code or any comparable
provision of state law to the conclusions expressed above.

   We hereby consent to the filing of this opinion as an exhibit to the
Registration Statement and to the reference to our firm made therein under the
caption "Validity of Securities." In giving such consent, we do not thereby
admit that we come within the category of persons whose consent is required
under Section 7 of the Securities Act or the Rules and Regulations of the
Securities and Exchange Commission promulgated thereunder.

                                         Very truly yours,

                                         /s/Sullivan & Worcester LLP

                                         SULLIVAN & WORCESTER LLP