General Instrument’s latest distribution system and is the standard for 4DTV product. DC2 uses standard MPEG-2 video encoding, but just about everything else in this “standard” is unique to DC2. For example, DVB/MPEG-2 uses Musicam for audio whereas DC2 uses Dolby AC-3. Despite using the same video standard, DVB/MPEG-2 and DC2 signals are totally incompatible and no receiver can currently receive both.