<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED STATEMENTS OF OPERATIONS AND BALANCE SHEETS OF WESTERN DIGITAL
CORPORATION AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH QUARTERLY
REPORT ON FORM 10-Q FOR THE NINE-MONTH PERIOD ENDED MARCH 27, 1999.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          JUL-03-1999
<PERIOD-START>                             JUN-27-1998
<PERIOD-END>                               MAR-27-1999
<CASH>                                         297,095
<SECURITIES>                                         0
<RECEIVABLES>                                  329,867
<ALLOWANCES>                                    18,405
<INVENTORY>                                    163,413
<CURRENT-ASSETS>                               806,629
<PP&E>                                         662,683
<DEPRECIATION>                                 350,575
<TOTAL-ASSETS>                               1,158,422
<CURRENT-LIABILITIES>                          653,883
<BONDS>                                        537,784
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           906
<OTHER-SE>                                     (51,227)
<TOTAL-LIABILITY-AND-EQUITY>                 1,158,422
<SALES>                                      2,057,904
<TOTAL-REVENUES>                             2,057,904
<CGS>                                        2,081,625
<TOTAL-COSTS>                                2,081,625
<OTHER-EXPENSES>                               357,344
<LOSS-PROVISION>                                 2,500
<INTEREST-EXPENSE>                              10,139
<INCOME-PRETAX>                               (391,204)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                           (391,204)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                  (391,204)
<EPS-PRIMARY>                                    (4.39)
<EPS-DILUTED>                                    (4.39)