WD'S THIRD-GENERATION HIGH CAPACITY ENTERPRISE SATA HARD DRIVES OFFER NEW AND ENHANCED FEATURES AND NEW ELECTRONICS FOR RELIABILITY IN DEMANDING ENVIRONMENTS

LAKE FOREST, Calif. - June 19, 2008 - Addressing the growing enterprise market for highly reliable high-capacity storage, WD (NYSE: WDC) today announced it is now shipping the new WD RE3 SATA hard drives, the company's latest generation of "RE" family drives. As data centers become larger and more complex, WD's third-generation high capacity enterprise SATA hard drives enhance vibration and shock tolerance and deploy new electronics to increase performance approximately 20 percent and by as much 60 percent in high-vibration environments.

"WD has continued to leverage its extensive experience gained from previous generation enterprise drives, as well as our enterprise-class WD VelociRaptor™ drives, to develop a hard drive perfectly suited for servers, network attached storage and storage networks," said Tom McDorman, vice president and general manager of enterprise storage solutions for WD. "WD's RE3 family offers the best combination of enhanced features, superior reliability, and optimum performance for enterprise applications."

In line with the WD RE drive heritage, WD RE3 drives feature 1.2 million hours MTBF, native command queuing (NCQ), time limited error recovery (TLER), and an extensive and enhanced testing process to ensure long-term reliability for demanding enterprise applications.

WD RE3 Features

Dual processor - Twice the processing power that results in a 20 percent performance improvement over the previous generation.

RAFF™ technology - Resulting in up to 60 percent performance improvement over previous generation drives, WD's fourth-generation RAFF technology includes sophisticated electronics to monitor the drive and correct both linear and rotational vibration simultaneously, in real time for maximum performance in high vibration environments.

IntelliSeek™ technology - Calculates optimum seek speeds to lower power consumption, noise and vibration in active seek modes without degrading performance.

Multi-axis shock sensor - An additional third sensor has been added to RE3 models to automatically detect the subtlest shock events and compensates to protect the data.

RAID-specific, Time-Limited Error Recovery (TLER) - Prevents drive fallout caused by the extended hard drive error-recovery processes common to desktop drives.

Third-generation dynamic fly height - With this next generation dynamic fly height technology, each read-write head's fly height is adjusted in real time for optimum reliability.

Thermal extended burn-in test - Extended burn-in testing with thermal cycling added to ensure only the most robust drives are produced as RAID Edition.

NoTouch™ ramp load technology - The recording head never touches the disk media ensuring significantly less wear to the recording head and media as well as better drive protection in transit.

Price and Availability

WD RE3 500 GB (model WD5002ABYS), 320 GB (model WD3202ABYS) and the 250 GB (model WD2502ABYS) hard drives are available now through select distributors and resellers. Manufacturer's Suggested Retail Price (MSRP) for the WD RE3 500 GB is $119, the 320 GB is $89 and the 250 GB is $79 USD. WD RE3 drives are covered by a five-year limited warranty. More information about WD RE3 enterprise drives may be found on the company's Web site at http://www.wdc.com/en/products/Products.asp?DriveID=489.

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 (http://www.westerndigital.com) to access a variety of financial and investor information.