Casa's ''Headend in a Box'' Revolutionizes the Economics of Digital TV Services.

SAN ANTONIO -- SeaChange to Sell and Support Casa Products; Boosts On-Demand and Ad Insertion Cost-Performance

This week at SCTE Cable-Tec Expo, Casa Systems, Inc. debuts its C2800 Digital Media Manager(TM), a "headend in a box" that does channel grooming, program splicing, trans-rating, statistical multiplexing and QAM modulation at very low costs. In a 1U form factor the C2800 handles up to 512 simultaneous digital streams - the smallest footprint and greatest density available today.

Founded by broadband networking authority Jerry Guo, Casa Systems is transforming the economics of provisioning new digital television services. Unlike any predecessor on the market today, Casa's C2800 helps lower the per-stream and per-channel cost of video-on-demand, ad insertion, broadcast channel management and digital simulcast.

Now, Casa's products are backed by the world's largest service and support organization in television: Through a product supply agreement, SeaChange International (Nasdaq: SEAC) will market, sell and support the C2800, as well as Casa's C2100 Series QAM and other edge devices.

"Nothing else comes close to the sheer economy of the C2800 and now we have the reach and support of SeaChange," said Jerry Guo, president and CEO, Casa Systems. "Diminished headend space, tight budgets, non-stop integration and upgrades - there's a long list of challenges we're overcoming with our solutions. At the same time, we're offering the best available performance in digital program insertion, modulation, grooming and other mission-critical tasks."

The C2800 Digital Media Manager's key functions include:

--Grooming, managing channel line-ups at network's edge with simultaneous support for Standard-Definition (SD) or High-Definition (HD) streams;

--Trans-rating and statistical multiplexing, concurrently managing both tasks to maximize channel efficiency and spare bandwidth;

--Digital program insertion, further industry-leading performance, inserting content into SD and HD streams and supporting SCTE DVS-253 and DVS-380;

--Integrated QAM, enabling cost-sensitive, incremental growth - 16 channels per software-configurable module - and supporting frequency-agile upconversion, modulation and encryption;

--Switched broadcast, managing client requests in real-time to divert network bandwidth from less frequently viewed programs;

--MPEG-4 AVC/H.264 support, extending all media processing and bandwidth management capabilities to MPEG-4 AVC. MPEG-2 deployments are field upgradeable to MPEG-4.

The C2800 also consolidates MPEG switching, as well as transport streams aggregation for distribution over IP networks, enabling network operators to deliver video-on-demand and network PVR programming in native MPEG format and seamlessly migrate to IP streaming with the same hardware. The system can be configured for both headend and hub deployment and is fully compatible with legacy HFC plants. It will be available in Q3 2005.

Cable-Tec Expo debut

This week at the SCTE Cable Tec-Expo in San Antonio (SeaChange booth 2107), the C2800's digital program insertion capabilities will be demonstrated with SeaChange's Spot Ad Insertion System(TM).

The companies will also demonstrate Casa's C2100 Edge QAM Modulator(TM) with SeaChange's VOD system, showing simultaneous MPEG video-on-demand and video over DOCSIS. The C2100 leads the industry in port density and integration. It combines up to 64 QAM channels with integrated layer 2/3 switching and routing. The "soft-QAM" provides cable operators with a future-proof system that is designed to adapt to new encryption algorithms, video compression standards and network protocol changes including NGNA.

About Casa Systems, Inc.

Casa Systems Inc. is a privately held company in Tewksbury, Mass. Casa Systems offers a new category of network edge devices based on disruptive technologies to target the growing market opportunity in interactive digital video and broadband IP services. Casa Systems' innovation completely changes the economics of provisioning new services. The reduction in initial capital expenditures and savings on ongoing operational expenditures enabled by Casa products provides the best path for operators to roll out new digital services. Visit www.casa-systems.com.