Concurrent and Scientific-Atlanta Enabling Faster, More Cost-Effective Rollouts of VOD Service.

Business Editors/High Tech & Entertainment Writers

ATLANTA--(BUSINESS WIRE)--Dec. 4, 2002

Two Companies Demonstrate Interoperability of Scientific-Atlanta's

Prisma GbE Optical Transport System and Concurrent's Mediahawk(R)

Video Server

Concurrent Computer Corporation (Nasdaq:CCUR), the pioneer and market leader in North American Video-On-Demand (VOD) commercial deployments, and Scientific-Atlanta (Nasdaq:SFA), a world leader in optical transport technology, today announced that they are working together to make it possible for cable operators to roll out VOD services faster and more cost-effectively. The two companies have tested interoperability of Scientific-Atlanta's Prisma GbE optical transport technology and Concurrent's MediaHawk(R) Video Server.

These tests conclude that Scientific-Atlanta's Prisma GbE(TM) optical transport system and iMux(TM) IP-to-ASI gateway can successfully operate with Concurrent's MediaHawk Video Server, presenting a powerful and cost-effective VOD transport solution. Cable operators will be able to take advantage of efficient IP transport technology to quickly deliver more content to and in between headends, while also lowering their costs by deploying proven Concurrent and Scientific-Atlanta products. The system utilizes existing deployed QAM and MPEG-2 transport from the headend to the home.

The critical advantage of using IP transport to and in between headends for broadband services such as VOD and subscription VOD (SVOD) is its greater scalability and considerably lower operational cost than standard delivery networks. IP transport allows simple, flexible switching by giving each video stream a unique IP address, allowing operators to easily and cost-effectively distribute video streams within the network from any server.

"The successful completion of these tests assures cable operators that they have a faster, more reliable, and cost-effective method for rolling out high-volume VOD service to large numbers of subscribers," said Paul Connolly, vice president of marketing and network architectures, Scientific-Atlanta. "Concurrent and Scientific-Atlanta are long-time partners, and this is yet another way the two companies will give operators the critical tools they need to win the competition with satellite and also get a fast return on their VOD investment."

"Concurrent and Scientific-Atlanta have worked together on numerous VOD network deployments and made major advancements in developing efficient VOD delivery systems," said Steve Necessary, president of Concurrent's XSTREME (VOD) Division. "The combination of these outstanding technologies presents operators with an excellent solution for maximizing their VOD investment."

Scientific-Atlanta's Prisma GbE optical transport system delivers 10 times the video streams of traditional Ethernet offerings. Its speed and bandwidth enables content delivery costs as low as $18 per stream, which could allow cable operators to benefit from a much faster return on investment.

Scientific-Atlanta's iMux IP-to-ASI gateway bridges the IP-based optical fiber network with the existing QAM-based HFC distribution network for VOD applications. It is designed to deliver broadcast-quality VOD over existing IP-enabled networks. The iMux device will receive up to160 IP-encapsulated MPEG-2 single program transport streams, de-encapsulate them and re-multiplex them into four MPEG-2 multi-program transport streams.

Concurrent's MediaHawk(R) Broadband VOD System features the MediaHawk Video Server and MediaHawk Business Management System (BMS), which provide cable operators all the tools necessary to run their VOD business from end-to-end. The MediaHawk BMS includes a complete system for managing content, subscriber demographic information, transaction and usage analysis, billing, and order fulfillment.

Concurrent's VOD technology enables subscribers to use a digital set-top box to instantly call up digital movies and other programming from a list that includes major movie titles and control their selected movie with VCR-like functionality including fast forward, pause, and rewind.

About Concurrent

Concurrent Computer Corporation (http://www.ccur.com) is a worldwide leader in high-performance computer systems, software and servers. Concurrent's XSTREME Division is a worldwide market leader in providing digital VOD systems to the broadband industry. This market includes broadband VOD and rich streaming media applications such as corporate training, education, hospitality and digital video-to-the-home. Concurrent is also a leading provider of high-performance, real-time computer systems, solutions, and software that focus on hardware-in-the-loop and man-in-the-loop simulation, data acquisition, and industrial control systems for commercial and government markets. Concurrent has 35 years of experience and is providing these best of breed solutions through its offices in North America, Europe, Asia, and Australia.

Concurrent is the established leader in the VOD market, serving seven major cable operators in 48 markets with 3.4 million digital subscribers. Concurrent's proven technology provides one of the most flexible, comprehensive solutions for HFC, DSL and IP-based networks. The company's powerful and scalable VOD systems are based on open standards and are integrated with the leading broadband technologies.

Certain statements made or incorporated by reference in this release may constitute "forward-looking statements" within the meaning of the federal securities laws. When used or incorporated by reference in this release, the words "believes," "expects," "estimates," and similar expressions are intended to identify forward-looking statements. Statements regarding future events and developments and our future performance, as well as our expectations, beliefs, plans, estimates, or projections relating to the future, are forward-looking statements within the meaning of these laws. All forward-looking statements are subject to certain risks and uncertainties that could cause actual events to differ materially from those projected. The risks and uncertainties which could affect our financial condition or results of operations include, without limitation: availability of video-on-demand content; delays or cancellations of customer orders; changes in product demand; economic conditions; various inventory risks due to changes in market conditions; uncertainties relating to the development and ownership of intellectual property; uncertainties relating to our ability and the ability of other companies to enforce their intellectual property rights; the pricing and availability of equipment, materials and inventories; the limited operating history of our video-on-demand segment; the concentration of our customers; failure to effectively manage growth; delays in testing and introductions of new products; rapid technology changes; demand shifts from high-priced, proprietary real-time systems to low-priced, open server systems; system errors or failures; reliance on a limited number of suppliers; uncertainties associated with international business activities, including foreign regulations, trade controls, taxes, and currency fluctuations; the highly competitive environment in which we operate; and the entry of new well-capitalized competitors into our markets.

Other important risk factors are discussed in our Form 10-K filed with the Securities and Exchange Commission on September 25, 2002 and may be discussed in subsequent filings with the SEC. Our forward-looking statements are based on current expectations and speak only as of the date of such statements. We undertake no obligation to publicly update or revise any forward-looking statement, whether as a result of future events, new information, or otherwise.

Note to Editors: For additional company or product information from Concurrent Computer Corporation, please contact Concurrent Computer Corporation, 4375 River Green Parkway, Duluth, GA 30096. Call toll free in the U.S. and Canada at [phone], fax [phone]. Readers can also access information through the company's Web site at http://www.ccur.com .

Concurrent Computer Corporation, its logo, and MediaHawk are registered and unregistered trademarks of Concurrent Computer Corporation. All other product names are trademarks or registered trademarks of their respective owners.

About Scientific-Atlanta

Scientific-Atlanta, Inc. (NYSE:SFA) (http://www.scientificatlanta.com) is a leading supplier of digital content distribution systems, transmission networks for broadband access to the home, digital interactive set-tops and subscriber systems designed for video, high-speed Internet and voice over IP (VoIP) networks, and worldwide customer service and support.

"Forward-looking statements," as defined in the Private Securities Litigation Reform Act of 1995, may be included in this news release. A variety of factors could cause Scientific-Atlanta's actual results to differ from the anticipated results expressed in such forward-looking statements. Investors are referred to Scientific-Atlanta's Cautionary Statements (Exhibit 99.1 to the Company's most recent Form 10-K), which statements are incorporated into this news release by reference.

For more information on Scientific-Atlanta, visit http://www.scientificatlanta.com . Writers and editors may access a variety of information on the company and its product, as well as downloadable images, by selecting Press from the home page. Scientific-Atlanta and Prisma are registered trademarks of Scientific-Atlanta, Inc. Prisma GbE and iMux are trademarks of Scientific-Atlanta, Inc.