anced Tele- vision Systems Committee (ATSC), MPEG-2 also supports resolutions of 1,920 X 1,080 and frame or field rates of up to 60fps. MPEG-4-MPEG-4 is a standard for multimedia applications. MPEG-4, an evolution of MPEG-2, features audio, video, and systems layers and offers variable-bit-rate encoding for both narrowband and broadband delivery in a Chapter 10 Next-Generation Networks single file. It also uses an object-based compression method, rather than MPEG-2's frame-based compression. MPEG-4 enables objects-such as two-dimensional or three-dimensional video objects, text, graphics, and sound-to be manipulated and made interactive through Web-like hyper- links and/or multimedia triggers. The best feature of MPEG-4 is that the RealNetworks players, Microsoft Windows Media Player, and Apple QuickTime all support MPEG-4. MPEG-4 is intended to expand the scope of audio/visual content to include simultaneous use of both stored and real-time components, plus distribution from and to multiple endpoints, and also to enable the reuse of both content and processes. MPEG-4 Advanced Video Compression (AVC)-MPEG-4 AVC, also called Part 10 or ITU H.264, is a digital video codec standard noted for achieving very high data compression. It is the result of a collaborative partnership effort between the ITU Video Coding Experts Group (VCEG) and the ISO/ IEC MPEG known as the Joint Video Team (JVT). AVC contains a number of new features that allow it to compress video much more effectively than older standards and to provide more flexibility for application to a wide variety of network environments. H.264 can often perform radically better than MPEG-2 video compression, typically achieving the same quality at half the bit rate or less. It is planned to be included as a mandatory player feature in an enormous variety of implementations and standards. MPEG-7-MPEG-7 is a multimedia content description standard for infor- mation searching. Thus, it is not a standard that deals with the actual encod- ing of moving pictures and aud