Company:  WESTERN DIGITAL CORP (WDC)
Form Type:  10-K
Filing Date:  8/20/2012 
CIK:  0000106040 
Address:  3355 MICHELSON DRIVE
SUITE 100 
City, State, Zip:  IRVINE, California 92612 
Telephone:  (949) 932-5000 
Fiscal Year:  06/29 
Last Trade
Last Trade: 
$60.46   		Change: 
1.41 (2.39%)  
Trade Time: 
May 17   		Market Cap: 
$14.29B
Description of Business
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  FORM 10-K
    PART I
      Item 1. Business
        NAME AND TITLE
      Item 1A. Risk Factors
      Item 1B. Unresolved Staff Comments
      Item 2. Properties
      Item 3. Legal Proceedings
      Item 4. Mine Safety Disclosures
    PART II
      Item 5. Market for Registrant's Common Equity, Related ...
      Item 6. Selected Financial Data
      Item 7. Management's Discussion and Analysis of Financial ...
        Results of Operations
        Liquidity and Capital Resources
      Item 7A. Quantitative and Qualitative Disclosures About ...
      Item 8. Financial Statements and Supplementary Data
        REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
        REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
        BALANCE SHEET
        INCOME STATEMENT
        CASH FLOW
        STOCKHOLDERS EQUITY
        NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
          BALANCE SHEET
    VALUATION AND QUALIFYING ACCOUNTS
    PART II
      Item 9. Changes in and Disagreements with Accountants on ...
      Item 9A. Controls and Procedures
      Item 9B. Other Information
    PART III
      Item 10. Directors, Executive Officers and Corporate Governance
      Item 11. Executive Compensation
      Item 12. Security Ownership of Certain Beneficial Owners and ...
      Item 13. Certain Relationships and Related Transactions, and ...
      Item 14. Principal Accountant Fees and Services
    PART IV
      Item 15. Exhibits and Financial Statement Schedules
    SIGNATURES
    EXHIBIT INDEX
  EXHIBIT 10.1.7
  EXHIBIT 10.7
  EXHIBIT 21
    SUBSIDIARIES
  EXHIBIT 23
    CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
  EXHIBIT 31.1
    CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER
  EXHIBIT 31.2
    CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER
  EXHIBIT 32.1
    Certification of Chief Executive Officer
  EXHIBIT 32.2
    Certification of Chief Financial Officer
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