FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * SHAKEEL ARIF   2. Issuer Name and Ticker or Trading Symbol WESTERN DIGITAL CORP [WDC] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) President and COO (Last) (First) (Middle) C/O WESTERN DIGITAL CORPORATION, 20511 LAKE FOREST DRIVE 3. Date of Earliest Transaction (Month/Day/Year) 12/06/2004 (Street) LAKE FOREST, CA 92630-7741 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 12/06/2004   M   46,750 A $ 2.1 55,960 D   Common Stock 12/06/2004   M   137,500 A $ 3.85 193,460 D   Common Stock 12/06/2004   M   26,250 A $ 4.8125 219,710 D   Common Stock 12/06/2004   M   25,300 A $ 4.9375 245,010 D   Common Stock 12/06/2004   M   14,200 A $ 6 259,210 D   Common Stock 12/06/2004   S   100,000 D $ 10.7 159,210 D   Common Stock 12/06/2004   S   8,500 D $ 10.78 150,710 D   Common Stock 12/06/2004   S   91,500 D $ 10.75 59,210 D   Common Stock 12/06/2004   S   43,300 D $ 10.9 15,910 D   Common Stock 12/06/2004   S   6,700 D $ 10.91 9,210 D   Common Stock               2,763 I by Trust 401(K)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Employee Stock Option (right to buy)

$ 2.1

12/06/2004

M

46,750

03/26/2002(1)

09/26/2011

Common Stock

46,750

$ 0

0

D

Employee Stock Option (right to buy)

$ 3.85

12/06/2004

M

137,500

03/23/2003(2)

09/23/2012

Common Stock

137,500

$ 0

62,500

D

Employee Stock Option (right to buy)

$ 4.8125

12/06/2004

M

26,250

01/27/2001(3)

01/27/2010

Common Stock

26,250

$ 0

0

D

Employee Stock Option (right to buy)

$ 4.9375

12/06/2004

M

25,300

07/28/2000(4)

07/28/2009

Common Stock

25,300

$ 0

0

D

Employee Stock Option (right to buy)

$ 6

12/06/2004

M

14,200

04/27/2001(5)

10/27/2010

Common Stock

14,200

$ 0

285,800

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
SHAKEEL ARIF C/O WESTERN DIGITAL CORPORATION 20511 LAKE FOREST DRIVE LAKE FOREST, CA 92630-7741	X		President and COO

Signatures

By: /s/ Sandra Garcia Attorney-in-Fact For: Arif Shakeel		12/07/2004
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	The option vested 25% 6 months from the grant date of 9/26/2001, and the remaining 75% vested in three equal installments on September 26, 2002, 2003 and 2004.
(2)	The option vested 25% 6 months from the grant date of 9/23/2002, 50% vested in two equal installments on September 23, 2003 and 2004, and the final 25% will vest on September 23, 2005.
(3)	The option vested 25% 12 months from the grant date of 1/27/2000 and 6.25% at the end of each three-month period thereafter.
(4)	The option vested in four equal installments on July 28, 2000, 2001, 2002 and 2003.
(5)	The option vested 25% 6 months from the grant date of 10/27/2000, and the remaining 75% vested in three equal installments on October 27, 2001, 2002 and 2003.

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