LAKE FOREST, Calif. - May 21, 2008 - Expanding on its popular portable storage offerings, WD® (NYSE: WDC) today introduced its new Mac®-formatted My Passport^TM Studio^TM Portable Drives. The newest members of the My Passport family are designed for Mac users on-the-go and are equipped with both FireWire® 400 and USB 2.0 interfaces, a clever capacity gauge, and include a soft drawstring carrying bag for protection from scratches and dirt. Available now at select retailers and at WD’s online store (www.shopwd.com), the My Passport Studio portable drives are offered in capacities of 320 GB and 250 GB.

Weighing in at less than 5 ounces, the My Passport Studio portable drives make it easy to securely carry office files, thousands[1] of songs, videos or photos and back up a Macintosh® laptop using Apple Time Machine^TM backup software utility. With an elegant silver metallic finish that perfectly complements other Mac products, these portable drives feature a shock-resistant enclosure to provide protection from the bumps and jars of everyday life on-the-go. Ultra portable, these drives are USB-bus powered which eliminates the need for an external power adapter[2].

“We designed the My Passport Studio portable drives to work seamlessly with Apple’s Time Machine, making this drive an ideal storage solution for creative pros on-the-go who require high performance storage to back up and carry their massive amounts of digital content,” said Jim Welsh, vice president and general manager of WD’s branded products and consumer electronics groups. “This sleek personal storage device with a faster FireWire interface and Mac-formatting is exactly the storage solution our Mac customers have been clamoring for ever since we introduced the first WD Passport portable USB drive.”

Unique features of the new My Passport Studio portable drives include:

• formatted HFS+, Journaled for Mac compatibility[3];
• - FireWire 400 and USB 2.0 interfaces;
• - capacity gauge that enables users to know at-a-glance how much space is available;
• - works with Apple Time Machine backup feature included in Apple’s Leopard® operating system;
• - USB powered[4];
• - industry-leading 5-year limited warranty; and,
• - elegant silver metallic finish that perfectly complements other Mac products.

WD’s My Passport Studio portable drives are available now at select retail stores and from WD’s online store (www.shopwd.com). MSRP for the My Passport Studio portable drive with 250 GB capacity is $159.99 USD and 320 GB is $219.99 USD.

Product information and photos of My Passport Studio Portable Drives are available on the company’s Web site at http://www.westerndigital.com/en/products/Products.asp?DriveID=469.

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.