FOR IMMEDIATE RELEASE

MEDIA CLEANER PRO 4.0 NOW SHIPPING
- Macintosh and Windows Versions Now Available -

New York, New York, June 30, 1999 - Streaming Media East - Booth #171
- Terran Interactive, a subsidiary of Media 100 Inc. (NASDAQ: MDEA)
and leading producer of desktop media compression tools, today
announced the availability of Media Cleaner Pro 4.0 for both
Macintosh and Windows. Media Cleaner Pro 4.0 is the only tool that
handles all the major formats, including Apple Computer's QuickTime*
4, RealNetwork's RealG2*, Microsoft's Windows Media Technologies*,
MP3, MPEG, AVI and others. Media Cleaner Pro's multi-standard and
cross-platform support drives the digital content creation market
forward by providing developers the flexibility to create the highest
quality media in any format required. For the first time, developers
using both Macintosh and Windows can use one tool to easily prepare
professional-quality media for delivery on the Web, broadband,
CD-ROM, kiosks, presentations, and DVD.

Doug Werner, webmaster at Apple Computer, said, "Media Cleaner Pro is
an essential tool for video compression. Media Cleaner Pro was used
exclusively in the compression of the Star Wars trailer 'The Phantom
Menace', allowing me to get the highest quality results possible.
Using Media Cleaner Pro I was able to quickly prepare multiple
versions for the Lucasfilm team to review. I love it and couldn't do
my job without it."

Mat Brown, chief engineer at encoding.com, said, "Media Cleaner Pro
is essential for getting professional quality audio and video files
on the Internet. With support for QuickTime, RealG2, Windows Media
and MP3, this tool allows us to quickly optimize large amounts of
video content for compression, and adds value for our customers like
Sony, Apple and Warner Brothers."

What's New in Media Cleaner Pro 4.0:
- Cross Platform Support -- Version 4.0 runs on both Mac OS and
Windows 95/98/NT. For the first time, all of the major multimedia and
streaming formats can be produced on either platform.

- More formats - Version 4.0 is the only tool to provide support for
all of the major formats, including QuickTime, Real G2, Windows Media
(ASF), AVI, MPEG-1, DV, MP3, and still image and audio formats.
Additional support for MPEG-2 is available through optional upgrades.

- Enhanced QuickTime support -automated production of QuickTime 4
streaming movies, enhanced movie alternates, automated poster frames,
variable display resolutions, and tight integration with the latest
codecs continue to broaden Cleaner's lead as the most powerful
QuickTime compression tool.

- RealG2 Support - With features such as Intellicine* (3:2 pulldown
removal), batch processing, color correction and more, Media Cleaner
Pro 4.0 is the only professional application available for both Mac
OS and Windows to produce high quality RealG2 files.

- Windows Media Technologies Support -- Version 4.0 is the only
application to provide a professional set of features with support
for Microsoft's Windows Media Technologies format on both Mac OS and
Windows 95/98/NT enabling developers to create the highest-quality
ASF files.

- Lossless Format Conversion - Media Cleaner Pro enables the user to
losslessly convert between certain formats without recompression. For
example, QuickTime movies can be converted to AVI without loss of
quality.

- Professional Quality Audio Support - Version 4.0 includes support
for version one and two of the QDesign Music codec, Fraunhofer MP3,
higher quality resampling than Media Cleaner Pro 3, and a range of
new audio filters including Adaptive Noise Removal, Dynamic Range
Compression, Noise Gate, Highpass/Lowpass, Notch and more.

Pricing and Availability
Macintosh and Windows versions of Media Cleaner Pro are sold
separately and are available for $499. Existing Macintosh owners can
get the version 4.0 upgrade for $99 with the price going to $159
after August 31. Owners of Media Cleaner Pro for one platform can
purchase the alternate platform version for $249. Media Cleaner is
available directly from Terran Interactive, mail order and domestic
and international resellers.

About Media 100 Inc.
Media 100 Inc. of Marlboro, Mass., USA is a public company (NASDAQ:
MDEA) focusing on the digital media marketplace. Since 1993, its
award-winning Media 100 and Finish digital video systems have
redefined the digital video industry by making program creation
simpler and more affordable. With more than 23,000 systems installed
in more than 50 countries worldwide, Media 100 digital video systems
are used in the creation of programs for broadcast, video, animation,
multimedia, CD-ROM and the Internet. For more information, visit
http://www.media100.com or phone (508) 460-1600.

About Terran Interactive
Founded in 1995, Terran is a subsidiary of Media 100 with offices
located in Los Gatos, California. Terran's mission is to develop
powerful and easy-to-use tools that optimize and compress dynamic
media, enabling users to enrich their Web, broadband, CD-ROM and DVD
projects. Media Cleaner Pro, Terran's flagship product, is recognized
as the industry standard for compressing digital media. Media Cleaner
Pro supports all predominant video, audio and still image formats
including QuickTime 4, RealG2, Windows Media Technologies, MPEG, AVI,
MP3 and many others. For more information, visit
http://www.terran.com or phone (408) 356-7373.
Press Contact:
John Geyer
Terran Interactive
(408) 356-7373 x227
jgeyer@terran.com