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     AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON APRIL 27, 2001

                                                      REGISTRATION NO. 333-36332
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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

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

                         POST-EFFECTIVE AMENDMENT NO. 2
                                       to
                                    FORM S-8

                             REGISTRATION STATEMENT
                        UNDER THE SECURITIES ACT OF 1933

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

                           WESTERN DIGITAL CORPORATION
             (Exact name of Registrant as specified in its charter)

              DELAWARE                                         33-0956711
     (State or other jurisdiction of                        (I.R.S. Employer
     incorporation or organization)                        Identification No.)

                             20511 LAKE FOREST DRIVE
                          LAKE FOREST, CALIFORNIA 92630
                                 (949) 672-7000
    (Address, including zip code, and telephone number, including area code,
                  of Registrant's principal executive offices)

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

                           WESTERN DIGITAL CORPORATION
                        BROAD-BASED STOCK INCENTIVE PLAN
                              (Full Title of Plan)

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

                              MICHAEL A. CORNELIUS
               VICE PRESIDENT, LAW & ADMINISTRATION AND SECRETARY
                           WESTERN DIGITAL CORPORATION
                             20511 LAKE FOREST DRIVE
                          LAKE FOREST, CALIFORNIA 92630
                                 (949) 672-7000
 (Name, address, including zip code, and telephone number, including area code,
                             of agent for service)


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                         POST-EFFECTIVE AMENDMENT NO. 2

        Western Digital Corporation, a Delaware corporation (the "Registrant"),
files this Post-Effective Amendment No. 2 to the Registration Statement on Form
S-8, to correct a typographical error in the par value of the common stock of
the Registrant contained in Post-Effective Amendment No. 1 to the Registration
Statement on Form S-8, filed with the Securities and Exchange Commission on
April 6, 2001. Post-Effective Amendment No. 1 was filed by the Registrant as the
successor issuer to Western Digital Technologies, Inc. (formerly, Western
Digital Corporation), a Delaware corporation ("Western Digital"), in accordance
with Rule 414 under the Securities Act of 1933, as amended (the "Securities
Act"). Post-Effective Amendment No. 1 was filed to reflect the adoption by
Western Digital of a holding company organizational structure in accordance with
Section 251(g) of the Delaware General Corporation Law (the "DGCL"). The holding
company organizational structure was effected pursuant to an Agreement and Plan
of Merger to Form Holding Company (the "Merger Agreement") among Western
Digital, the Registrant, and WD Merger Sub, Inc., a Delaware corporation and a
wholly-owned subsidiary of the Registrant ("Merger Sub"). The Merger Agreement
provided for the merger of Merger Sub into Western Digital, with Western Digital
continuing as the surviving corporation and as a wholly-owned subsidiary of the
Registrant (the "Merger"). Prior to the Merger the Registrant was a wholly-owned
subsidiary of Western Digital. Pursuant to Section 251(g) of the DGCL,
stockholder approval of the Merger was not required. As a result of the Merger,
the consolidated assets and liabilities of the Registrant immediately after the
Merger were the same as the consolidated assets and liabilities of Western
Digital immediately prior to the Merger.

        As a result of the Merger, which was consummated on April 6, 2001, each
share of Western Digital common stock, par value $.01 per share ("Western
Digital Common Stock") issued and outstanding or held in treasury was converted
into one share of the Registrant's common stock, par value $.01 per share
("Registrant Common Stock"). Also, as a result of the Merger, each outstanding
option to purchase Western Digital Common Stock under the Western Digital
Broad-Based Stock Incentive Plan (the "Plan") was converted into an option to
purchase the same number of shares of Registrant Common Stock on the same terms
and conditions. The Registrant also adopted and assumed as its own all of the
rights and obligations of Western Digital under the Plan.

        In connection with the formation of the holding company, effective upon
consummation of the Merger, (i) the Board of Directors of Western Digital
terminated the Rights Agreement between Western Digital and American Stock
Transfer & Trust Company, as rights agent, dated October 15, 1998, as amended,
and all outstanding rights thereunder to purchase a fraction of a share of the
Series A Junior Participating Preferred Stock of Western Digital expired, (ii)
the Registrant entered into a new Rights Agreement between the Registrant and
American Stock Transfer & Trust Company, as rights agent, dated April 6, 2001,
and (iii) the Registrant declared a dividend of one right to purchase a fraction
of a share of the Series A Junior Participating Preferred Stock of the
Registrant for each share of the Registrant Common Stock which was distributed
to holders of Registrant Common Stock at the close of business on April 6,
2001. Until otherwise provided by the new Rights Agreement, the Registrant's
rights will be evidenced by certificates of Registrant Common Stock.

        Issuable under the Plan are 20,000,000 shares of common stock which were
registered under the Registration Statement on Form S-8, Registration No.
333-36332, as filed with the Securities and Exchange Commission on May 5, 2000.

        In accordance with Rule 414, the Registrant, as the successor issuer to
Western Digital, hereby expressly adopts Registration Statement No. 333-36332 on
Form S-8 as its own for all purposes of the Securities Act and the Securities
Exchange Act of 1934, as amended.

        Registration fees were paid at the time of filing the original
Registration Statement.


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                                   SIGNATURES

        Pursuant to the requirements of the Securities Act of 1933, as amended,
the Registrant certifies that it has reasonable grounds to believe that it meets
all of the requirements for filing on Form S-8 and has duly caused this
Post-Effective Amendment No. 2 to be signed on its behalf by the undersigned,
thereunto duly authorized, in the City of Lake Forest, State of California, on
April 10, 2001.


                                          WESTERN DIGITAL CORPORATION

                                          By: /s/ MICHAEL A. CORNELIUS
                                             ---------------------------------
                                                  Michael A. Cornelius
                                                  Vice President, Law and
                                                  Administration and Secretary


        Pursuant to the requirements of the Securities Act of 1933, as amended,
this Post-Effective Amendment No. 2 to the Form S-8 Registration Statement has
been signed below by the following persons in the capacities indicated on
April 10, 2001.

SIGNATURE TITLE --------- ----- * President and Chief Executive Officer - ------------------------------------------ (Principal Executive Officer) and Director Matthew E. Massengill * Senior Vice President, and Chief Financial Officer - ------------------------------------------ (Principal Financial and Accounting Officer) Teresa A. Hopp /s/ THOMAS E. PARDUN Chairman of the Board - ------------------------------------------ Thomas E. Pardun /s/ PETER D. BEHRENDT Director - ------------------------------------------ Peter D. Behrendt /s/ I. M. BOOTH Director - ------------------------------------------ I. M. Booth /s/ KATHLEEN A. COTE Director - ------------------------------------------ Kathleen A. Cote /s/ HENRY T. DeNERO Director - ------------------------------------------ Henry T. DeNero /s/ ROGER H. MOORE Director - ------------------------------------------ Roger H. Moore *By: /s/ MICHAEL A. CORNELIUS ------------------------------------- Michael A. Cornelius as attorney-in-fact