For Immediate Release

Imation Exhibit (#4821)

Imation Launches Faster, Sleeker SuperDisk Drives at PC Expo

NEW YORK — (June 21, 1999) Imation Corp. (NYSE:IMN) today announced
four new and improved SuperDisk drives offering faster performance,
lightweight design, and simple installation – including a new
SuperDisk USB Drive for PC and Macintosh.

While previous-generation SuperDisk drives from Imation read data
about 10 times faster than a floppy drive, the new and improved
SuperDisk drives read much faster — up to 27 times faster — than a
floppy. The new drives are capable of handling multimedia
applications such as video and audio recording while retaining the
reliability and compatibility advantages that have made SuperDisk
technology the leading replacement for the floppy. Like all SuperDisk
drives, the new products are fully read and write compatible with
floppies and 120 MB SuperDisk diskettes.

“Storage demands keep accelerating, so it’s no surprise that
SuperDisk continues to gain momentum,” said Steve Ladwig, president,
Imation Data Storage and Information Management. “Imation’s family of
SuperDisk drives presents our customers with a better array of
storage options than ever before. With SuperDisk, there’s virtually
no limit to the amount of images, photos, video and audio files users
can share and store – easily, efficiently and inexpensively – with
any kind of computer.”

Imation SuperDisk USB Drive for PC and Macintosh

An entirely new product from Imation, the Imation SuperDisk USB Drive
for PC and Macintosh offers PC and Macintosh USB compatibility in a
hot-swappable, portable drive. It reads data up to 22 times faster
than a floppy drive and is ideal for use with any computer with a USB
port, especially those desktop and notebook PCs that lack an onboard
floppy drive. It will be available in August at $169.99 (MSRP –
actual pricing may vary). Imation SuperDisk USB Drive for Macintosh

One of the most popular storage products for iMac and Power Macintosh
G3 computers from Apple, the new and improved Imation SuperDisk USB
Drive for Macintosh now reads data up to 22 times faster than a
floppy drive. It boasts an “all-ice” design to complement all of the
latest Macintosh colors. It offers easy plug-and-play setup in
seconds for any Mac with a USB interface and is hot-swappable. The
new, faster drive is now available at $169.99 (MSRP – actual pricing
may vary). Imation SuperDisk Internal IDE Drive

Offering an easy-to-install upgrade for almost any desktop PC, the
new and improved Imation SuperDisk Internal Drive reads data up to 27
times faster than a floppy drive. It installs on most systems as the
bootable a: drive – giving the user high capacity storage, excellent
performance and dual compatibility in a single drive bay. It is
available now at $99.99 (MSRP – actual pricing may vary). Imation is
offering a $20 rebate on the product, if purchased at retail, until
Dec. 31, 1999. Imation SuperDisk Parallel Port Drive

Sporting a sleek, more portable design, the redesigned and improved
Imation SuperDisk Parallel Port Drive now reads data up to 23 times
faster than a floppy drive. Lighter and more portable than its
predecessor, it can be easily attached to a computer’s printer port
and is the easy way to add storage capacity to any PC. It is
available now at $149.99 (MSRP – actual pricing may vary). Imation is
offering a $20 rebate on the product, if purchased at retail, until
Dec. 31, 1999.

Imation SuperDisk Parallel Port Drive

Sporting a sleek, more portable design, the redesigned and improved
Imation SuperDisk Parallel Port Drive now reads data up to 23 times
faster than a floppy drive. Lighter and more portable than its
predecessor, it can be easily attached to a computer’s printer port
and is the easy way to add storage capacity to any PC. It is
available now at $149.99 (MSRP – actual pricing may vary). Imation is
offering a $20 rebate on the product, if purchased at retail, until
Dec. 31, 1999.

All of the new and improved Imation SuperDisk drives include the
necessary software drivers, power adapters, cabling and instructions
for simple installation.

Imation’s line of SuperDisk products also include the 120 MB Imation
SuperDisk Diskette and the Imation SuperDisk Diskette with Secured
Encryption Technology. SuperDisk drives also are offered as standard
or optional internal equipment in new desktop and notebook computers
from more than 100 leading PC suppliers. Additionally, SCSI and
PCMCIA SuperDisk drives are available from leading suppliers. More
information about SuperDisk technology is available at
http://www.superdisk.com.

About Imation Corp.

Imation supplies a variety of products and services worldwide for the
information and image management industry, specializing in data
storage and information management, color management and imaging
solutions. With the company’s history of quality, reliability and
innovation, “Your Business Is Safe With Imation.” In 1998, the
Company reported revenues of approximately $2.0 billion. As of March
31, 1999, Imation employed approximately 6,250 people worldwide.

Additional information about Imation is available on the Company’s
Web site at www.imation.com or by calling Imation toll-free at
1-888-466-3456. To receive recent earnings and news releases,
corporate information and related shareholder services for Imation,
call Imation’s toll-free shareholder information line at
1-888-IMN-NYSE (1-888-466-6973).

FOR IMATION:
Nan Farnsworth DeGonda, Marketing Communications Manager
Imation Corp.
(651) 704-6190 / nfdegonda@imation.com

Gary Hornseth, Account Supervisor
Fleishman-Hillard, Inc.
(612) 337-0354 / hornsetg@fleishman.com