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*Details: File format summary



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Name MPEG-1 Program Stream
Other names  
Identifiers Apple Uniform Type Identifier:  public.mpeg
MIME:  video/mpeg
PUID:  x-fmt/385
Classification Video
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  
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
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