Bangkok--1 Aug--Pr Plus Two Full-year Revenue Totals $8.1 Billion, up 48 Percent, Net Income of $3.84 Per Share, up 54 Percent Demonstrating strong year-over-year performance, Western Digital Corp. (NYSE: WDC) today reported financial results for its fiscal year 2008 and fourth quarter ended June 27, 2008. The company posted revenue of $8.1 billion and operating income of $1.0 billion for fiscal year 2008. Net income was $867 million, or $3.84 per share, compared to $564 million, or $2.50 per share for the prior year. The 2008 net income amount included net charges of $75 million for taxes related to the license of intellectual property to subsidiaries and $49 million for acquired in-process research and development. The 2007 net income amount included an income tax benefit of $126 million related to adjustments to the value of the company’s deferred tax assets. These fiscal-year results represented increases in revenue of 48 percent, compared with the prior year’s $5.5 billion, and unit growth of 38 percent, from 96.5 million in 2007 to 133.3 million in 2008. The company grew its hard drive revenue contribution from non-desktop PC markets to 56 percent from 43 percent in the prior year. For the fourth quarter, revenue totaled $2.0 billion on shipments of approximately 35.2 million units, with operating income of $241 million and net income of $213 million, or $0.94 per share. The fourth quarter net income amount includes a $15 million incremental tax charge related to the license of intellectual property to subsidiaries. The June quarter results also represented strong year-over-year performance, including growth in revenue and unit shipments of 46 percent and 41 percent, respectively. In the year-ago quarter, the company reported revenue of $1.4 billion, unit shipments of 24.9 million, operating income of $79 million and net income of $212 million, or $0.94 per share. Net income in the year-ago period included a $126 million tax benefit reflecting a favorable adjustment to the valuation allowance of the company’s deferred tax assets. Sixty-three percent of Q4 revenue was derived from non-desktop sources, while 37 percent came from hard drives configured into desktop PCs. This compares with a mix in the year-ago quarter of 46 percent non-desktop sources versus 54 percent desktop PC revenue. The company shipped 11.7 million 2.5-inch mobile drives and 4.1 million 3.5-inch units for the PVR/DVR market in the fourth quarter, sequential quarterly increases of 15 percent and 32 percent, respectively, and year-over-year increases of 208 percent and 52 percent, respectively. Branded product revenue of $386 million for the quarter increased 17 percent sequentially and 68 percent year-over-year. The company also continued to grow its shipments of enterprise-class Serial ATA drives and hard drives featuring its unique GreenPowerTM technology into the desktop, enterprise and consumer electronics markets. The company generated $318 million in cash from operations during the June quarter, ending with total cash and cash equivalents of $1.1 billion. “Fiscal 2008 was an outstanding year for WD, capped off with the strong fourth-quarter financial performance,” said John Coyne, president and chief executive officer. “Our outstanding financial performance demonstrates the efficiency and effectiveness of the business model that we have built and refined over the last several years, underpinned by our industry-leading cost structure. Customer satisfaction with WD’s broad product line, high quality and reliability, service excellence and overall value proposition continues to drive our profitable growth.” Coyne also noted that the company’s integration of the Komag acquisition-announced just over one year ago and closed in September, 2007-was complete and that its new media operation was already generating solid technology and cost contributions to the overall business.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. Western Digital, WD, the WD logo, and WD Caviar Black are registered trademarks in the U.S. and other countries. For more information please contact: Thailand — Pr Plus Two Pimratchada S. Tel: 02-158-9107-8 www.prplus2.com