LAKE FOREST, Calif. - June 11, 2007 - Expanding its lineup of consumer-friendly, easy-to-use external hard drives, Western Digital Corp. (NYSE: WDC) today announced that its My Book™ family of storage appliances is now available with capacities of 1.5 TB and 750 GB. From remote access and sharing anywhere in the world to simple add-on storage and back up, the My Book family meets a variety of needs generated by today's increasingly large files from digital pictures, HD (high definition) video and music. WD's My Book family includes My Book World, My Book Pro, My Book Premium and My Book Essential Editions.

"Consumers are inundated with a plethora of devices that create rich multimedia content - from digital cameras to music players to video camcorders. The My Book family of external drives delivers peace of mind in a simple solution to remotely access, share, protect and store precious files," said Jim Welsh, vice president and general manager of WD's Branded Products Group.

Plug-and-play Storage
WD's popular My Book family is designed to be as easy to use for mainstream consumers as common household appliances. The unique remote-access of WD's My Book World Edition storage system offers a surprisingly simple and secure way to access and share data, photos, and music at home, in the office, and anywhere in the world--even when your local computer is off.

WD's My Book Pro, Premium and Essential Editions are the easiest way to add extra storage to a PC or Mac® and offer plenty of room to back up and store precious data. Each member of the My Book family solves storage needs for the variety of consumers and their respective purposes: from simple, plug-and-play backup to high-performance additional storage for massive audio/video projects.

Availability and Pricing
The My Book family of storage appliances with capacities of 1.5 TB and 750 GB are available now at select retail stores, online retailers and in the United States directly from WD at www.shopwd.com. Estimated pricing for the My Book family ranges from $279 USD to $699 USD depending upon model and capacity.

A 3-D view and more information on the My Book family of external storage products can be found at www.wdmybook.com.

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 close-at-hand and secure from loss. WD applies its storage expertise to consumer products for external, portable and shared storage products.

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.

###