European Commission Entering Phase II Review of WD® Proposed Acquisition

Sydney, Australia: June 1, 2011 – Western Digital Corporation today said it was informed by the European Commission (EC) that the EC would enter a Phase II review of WD’s previously announced acquisition of Hitachi Global Storage Technologies’ holding company, Viviti Technologies Ltd., a wholly owned subsidiary of Hitachi, Ltd. The company is co-operating fully with the EC in the Phase II review.
    
The proposed acquisition, which is subject to several closing conditions, including the receipt of antitrust approvals or the expiration of applicable waiting periods in certain jurisdictions, is now expected to close in the fourth calendar quarter of 2011.
    
The company indicated that it is proceeding, on plan, with its integration-planning activities associated with the proposed acquisition.

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 home entertainment 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.
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