WD® Completes Acquisition of Hoya's Magnetic Media Operations

Irvine, CA - 30. června 2010

Western Digital Corp. (NYSE: WDC) announced today that it has completed the previously announced acquisition of the magnetic media sputtering operations of Hoya Corporation and Hoya Magnetics Singapore Pte. Ltd. for approximately $233 million. The acquisition will support anticipated growth in hard drive demand.

WD® has acquired the facilities, equipment, intellectual property and working capital of Hoya's media sputtering operations, based in Tuas, Singapore, as well as certain related equipment at Hoya's Nagasaka, Japan, research and development facilities. A multi-year commitment of Hoya glass substrate supply related to these operations was included in the agreement.

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 designs and produces reliable, high-performance hard drives and solid state drives that keep users' data accessible and secure from loss. Its advanced technologies are configured into applications for client and enterprise computing, embedded systems and consumer electronics, as well as its own consumer storage and media products.

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

This press release contains forward-looking statements concerning hard drive demand and the anticipated benefits of WD's acquisition of Hoya's media sputtering operations. The foregoing forward-looking statements are based on WD's current expectations and are subject to risks and uncertainties that could cause actual results to differ materially from those expressed in the forward-looking statements, including: the failure to integrate successfully Hoya's technology, employees or operations; the impact of recent uncertainty and volatility in global economic conditions; supply and demand conditions in the hard drive industry; actions by competitors; unexpected advances in competing technologies; uncertainties related to the development and introduction of products based on new technologies and expansion into new data storage markets; business conditions and growth in the various hard drive markets; pricing trends and fluctuations in average selling prices; changes in the availability and cost of commodity materials and specialized product components that WD does not make internally; and other risks and uncertainties listed in WD's recent Form 10-Q filed with the SEC on April 30, 2010, to which your attention is directed. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof, and WD undertakes no obligation to update these forward-looking statements to reflect subsequent events or circumstances.

Western Digital, WD, and the WD logo are registered trademarks of Western Digital Technologies, Inc. All other trademarks mentioned herein belong to their respective owners.