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Properties

Summary
Name	MPEG-1 Program Stream
Version
Other names
Identifiers	Apple Uniform Type Identifier: public.mpeg MIME: video/mpeg PUID: x-fmt/385
Family
Classification	Video
Disclosure
Description	MPEG-1 is a lossy compression standard for video and audio, intended for use in Digital Storage Media (DSM) such as VideoCD and DVD (at the same encoding standard as VCD). It is designed to handle video frame-sizes of 352 x 288px, at a frame-rate of 25 frames per second (PAL) and a data rate of around 1.2Mbits/s; audio: up to 320 kbits/s (MPEG-1 Audio Layer III, .mp3). MPEG-1 supports random access to stream content on playback. MPEG-1 Video supports only 'progressive' frame video. MPEG-1 compression can be relatively inefficient by modern standards. An MPG-1 ‘Program’ stream (PS) file (.mpg, *.mpeg) generally contain both video and audio streams, generally for synchronised playback, and may carry a variety of other data (e.g. video captions).
Orientation	Binary
Byte order	Big-endian (Motorola)
Related file formats	Has lower priority than MPEG-2 Program Stream Has lower priority than Video Object File (MPEG-2 subset)
Technical Environment
Released
Supported until
Format Risk
Developed by	None.
Supported by	None.
Source	Digital Preservation Department / The National Archives
Source date	11 Mar 2005
Source description
Last updated	07 Jul 2014
Note