sentences:  Traditional digital video transmission and storage systems are based on H.222.0/MPEG-2 TS systems for broadcasting services over satellite, cable, and terrestrial transmission channels, and for DVD storage, or on H.320 for conversational video conferencing services.These channels are typically characterized by a fixed spatio-temporal format of the video signal (SDTV or HDTV or CIF for H.320 video telephone).The application behavior in such systems typically falls into one of the two categories