MPEG program stream: Difference between revisions

Revision as of 14:06, 6 August 2008

Revision as of 14:06, 6 August 2008

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Program streams are created by combining one or more [[Packetized Elementary Stream]]s (PES), which have a common time base, into a single stream. It is designed for reasonably reliable media such as disks, in contrast to [[transport stream]] which is for data transmission in which loss of data is likely. Program streams have variable size records and minimal use of [[start code]]s which would make over the air reception difficult, but has less overhead.

Program streams are used on [[DVD]] video discs and [[HD DVD]] video discs. They are parts of transport streams. The file extensions are [[VOB]] and [[Enhanced VOB|EVO]] respectively. Blu-ray uses a transport stream (TS) format with an additional 4 byte time code added to the beginning of each TS packet[http://en.wikipedia.org/w/index.php?title=MPEG_transport_stream&action=edit&section=11].

==Coding structure==