WESTERN DIGITAL CORPORATION INVESTOR INFORMATION SUMMARY

(All $ amounts in millions)


  Q1 FY02 Q2 FY02 Q3 FY02 Q4 FY02 Q1 FY03
REVENUE: $441 $575 $595 $541 $583
REVENUE BY CHANNEL:          
OEM 52% 56% 57% 48% 52%
DISTRIBUTORS 41% 36% 36% 45% 41%
RETAIL 7% 8% 7% 7% 7%
REVENUE BY GEOGRAPHY:          
AMERICAS 56% 54% 52% 54% 48%
EUROPE 30% 38% 33% 29% 33%
ASIA 14% 8% 15% 17% 19%
REVENUE CONCENTRATION:          
10 LARGEST CUSTOMERS 55% 60% 60% 57% 55%
HARD DRIVES UNITS (Millions): 5.4 7.7 8.1 8.0 8.6
WORLDWIDE HEADCOUNT: 7,852 7,819 10,114 9,550 10,003
ASSET MANAGEMENT:          
DSOs--AVERAGE 44 35 28 37 36
INVENTORY DETAIL:          
TOTAL          
  RAW $10 $4 $13 $9 $7
  WIP $27 $13 $14 $10 $17
  FINISHED GOODS $40 $79 $68 $55 $68
TOTAL INVENTORY, NET $76 $96 $95 $73 $92
INVENTORY TURNS 20 21 22 26 22