WD Unveils High Performance, Eco-Friendly Storage for Creative
Professionals and Mac Computer Enthusiasts

Equipped with WD GreenPower Hard Drives, Quad Interface and RAID 0
(Striped), New Dual-drive External Storage Systems Deliver a Perfect Blend
of Maximum Performance and Power Savings

ORLANDO, Fla. and LAKE FOREST, Calif., April 2, 2008 /PRNewswire-FirstCall/
— Photoshop World Booth No. 604 -WD (NYSE: WDC) today introduced its My
Book Studio Edition II high-performance dual-drive storage systems which
are designed to seamlessly work with Mac computers and provide an ideal
blend of power savings and high performance. Available now at select
retailers and the WD online store (http://www.shopwd.com), the new My Book
Studio Edition II dual-drive storage systems are available in capacities of
1 TB and 2 TB.

The new eco-friendly(1) dual-drive My Book Studio Edition II external
storage systems use WD’s GreenPower hard drives for power savings and cool
and quiet operation. The system’s dual-drive, RAID 0 configuration and
high-speed interfaces deliver high performance for creative professionals,
workgroups, small offices and anyone looking for fast data transfer.

Formatted(2) for Mac computers, these new storage systems feature:
extra-fast performance with four interfaces (FireWire 400/800, eSATA, USB
2.0); factory-shipped in RAID 0 (Striped) configuration [RAID 1 (Mirrored)
configurable]; cool, eco-friendly operation with WD GreenPower drives that
consume approximately one-third less power than standard dual-drive
external storage systems and efficient convection cooling architecture and
power-saving mode; designed without a fan to run quietly; 5-year limited
warranty; automatic and continuous backup software; capacity gauge to see
at a glance how much space is available on the system; intelligent drive
management features, including automatic power-up, Safe Shutdown and LED
status and activity lights(3); user serviceability, enabling owner to open
the enclosure and replace the drive inside; and elegant silver metallic
finish that perfectly complements other Mac products.

“WD developed the My Book Studio Edition II external drives to satisfy the
needs of Mac enthusiasts and creative professionals who require extra-fast
performance, but also want it to be as environmentally friendly as
possible,” said Jim Welsh, vice president and general manager of WD’s
branded products and consumer electronics groups. “Configured with RAID 0
out of the box, photographers, graphic artists, videographers, and others
who require large amounts of storage will experience high performance
combined with power savings and quiet operation when they use the new My
Book Studio Edition II storage system.”

Demonstrations of the My Book Studio II Edition storage systems may be
viewed at Photoshop World Booth No. 604 being held at the Orange County
Convention Center in Orlando, Fla. Apr. 2-4, 2008.

Extra-fast Performance with RAID 0

Lightning-fast eSATA or FireWire 800 interfaces combined with RAID 0
(Striped) yields the speed users need for: fast, smooth video editing;
rendering complex 3D objects or special effects; and saving huge blocks of
data in record time. With RAID 0, users can have 2 TB of storage in an
elegant, small footprint design that offers plenty of room to store an
entire digital photo library and hundreds of hours of HD movies or digital
video (results will vary based on file size and format, settings, features,
software and other factors).

Pricing and Availability

My Book Studio Edition II dual-drive storage systems are available now at
select retailers and WD’s online store (http://www.shopwd.com). MSRP for My
Book Studio Edition II with 1 TB is $349.99 USD; MSRP for My Book Studio
Edition II with 2 TB is $599.99 USD.

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.

(1) My Book Studio Edition II dual drive systems consume approximately
one-third less power than standard dual-drive storage systems. Tests based
on comparison between a 1 TB dual-drive system using 7200 RPM drives and a
1 TB dual-drive system using WD’s GreenPower drives.

(2) Includes a CD for PC formatting.

(3) Works with USB and FireWire connections only.