National Breast Cancer Foundation, Inc.

WD PASSPORT® PORTABLE STORAGE GOES PINK TO SUPPORT NATIONAL BREAST CANCER FOUNDATION

Company contacts:
Constance A. Griffiths
WD Press Relations
949.672.7891
Constance.Griffiths@wdc.com

Bob Blair
WD Investor Relations
949.672.7834
Robert.Blair@wdc.com

FOR IMMEDIATE RELEASE:

LAKE FOREST, Calif. - Oct. 30, 2007 - WD® (NYSE: WDC) today announced that the company is a proud sponsor of the National Breast Cancer Foundation (www.nationalbreastcancer.org) with the introduction of its new pink WD Passport® Portable Drives. Available now in the U.S. from WD's online store (www.shopwd.com) and expected next month at Best Buy stores, the new pink-colored WD Passport Portable Drive features a whopping one-quarter terabyte capacity. To aid in the fight against breast cancer, WD is making a donation to the National Breast Cancer Foundation (NCBF).

"WD recognizes the responsibility to respond to the needs of the communities in which we operate," said John Coyne, CEO and president of WD. "By partnering with the NBCF, WD has the opportunity to the contribute to the needs of our community through the sales of our pink WD Passport drives."

WD Passport Portable Drives have become popular worldwide for their plug-and-play capability, stylish and ultra-portable design. At less than five ounces, this lightweight drive fits neatly in a pocket or backpack and is the perfect gadget to back up today's increasingly large files from digital pictures, HD (high definition) video and music.

WD Sync software allows consumers to take desktop content with them by simplifying the synchronization of personal files including Microsoft® Outlook® data on a PC. Should owners misplace the drive, they know their data is protected with 128-bit encryption. Google(tm) software allows users to quickly locate files with the Google Desktop Search(tm) search tool, manage photos with Picasa(tm) photo organizer software and simplify Web searches with the Google Toolbar(tm) search bar.

A product specification sheet and photos of WD Passport Portable Drives are available on the company's Web site.

Price and Availability

Pink WD Passport Portable Drives are available now at WD's online store (www.shopwd.com) and expected next month at Best Buy stores. MSRP for the pink WD Passport Portable Drive 250 GB is $199.99 USD.

About National Breast Cancer Foundation

National Breast Cancer Foundation (NCBF) extends women's lives through education about breast cancer and early detection. The organization provides hope to women and families affected by breast cancer through a community of caring support and encouragement that enables those diagnosed with breast cancer to have fulfilling lives during their treatment and after.

About WD

WD, one of the storage industry's pioneers and long-time leaders, provides products and services for people and organizations that collect, manage and use digital information. The company produces reliable, high-performance hard drives that keep users' data accessible and secure from loss. WD applies its storage expertise to consumer products for external, portable and shared storage applications.

WD was founded in 1970. The company's storage products are marketed to leading systems manufacturers, selected resellers and retailers under the Western Digital and WD brand names. Visit the Investor section of the company's Web site (www.westerndigital.com) to access a variety of financial and investor information.

### Western Digital, WD, the WD logo and WD Passport are registered trademarks; WD Sync is a trademark of Western Digital Technologies, Inc. Other marks may be mentioned herein that belong to other companies. All other brand and product names mentioned herein are the property of their respective companies. 1 gigabyte (GB) = 1 billion bytes. One terabyte (TB) = one trillion bytes. Total accessible capacity varies depending on operating environment.

EDITOR'S NOTES:

- WD product photos.
- Product Spec Sheets.
- Editorial review samples of WD Passport may be requested via WD's Web site.