MPEG program stream
| Filename extension | 
.mpg, .mpeg, .m2p, .ps | 
|---|---|
| Internet media type | 
video/MP2P, video/MP1S, video/mpeg | 
| Uniform Type Identifier (UTI) | public.mpeg | 
| Developed by | MPEG | 
| Initial release | August 1993 | 
| Latest release | ISO/IEC 13818-1:2019 June 2019 | 
| Type of format | Container format | 
| Container for | Audio, video, data | 
| Extended to | VOB, EVO, MOD | 
| Standard | ISO/IEC 11172-1, ISO/IEC 13818-1, ITU-T H.222.0 | 
| Open format? | Yes | 
| Free format? | Yes | 
Program stream (PS or MPEG-PS) is a container format for multiplexing digital audio, video and more. The PS format is specified in MPEG-1 Part 1 (ISO/IEC 11172-1) and MPEG-2 Part 1, Systems (ISO/IEC standard 13818-1/ITU-T H.222.0). The MPEG-2 Program Stream is analogous and similar to ISO/IEC 11172 Systems layer and it is forward compatible.
Program streams are used on DVD-Video discs and HD DVD video discs, but with some restrictions and extensions. The filename extensions are VOB and EVO respectively.