MPEG-1 Program Stream

Writable

video

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).

Identify it

Extensions	`.mpeg.mpg.mp1`
MIME types	`video/mpegvideo/mp1s`
Signatures	`000001ba` at byte 0 (MPEG-1 Program Stream)
PRONOM	`x-fmt/385`
Wikidata	`Q28018470`
Apple UTI	`public.mpeg`

Not sure your file is this? Identify it from its first bytes, in your browser.

Open it

FFmpegOpen sourcereads and writes · LGPL-2.1-or-later / GPL-2.0-or-later
PhotoRecOpen sourcereads · GNU General Public License
Q2596578Open sourcereads · GNU General Public License, version 2.0
Q3898244Open sourcereads · BSD licenses / GNU General Public License / GNU Lesser General Public License
Q50938515Open sourcereads · GNU Affero General Public License, version 3.0 or later
Creator NXT 2reads and writes
Pinnacle Studio 17 Ultimatereads and writes
Adobe After Effectsreads · proprietary license
Adobe Encorereads
Adobe Photoshop Albumreads
Adobe Premiere Proreads · proprietary license
ENVIreads · proprietary license
EZ CD Audio Converterreads
FakeTubereads · end-user license agreement
Mediamatics DVDExpressreads
MoviePlusreads
Noatunreads
PhotoModelerreads · proprietary license
SpaceClaimreads
TMPGEncreads
Veblrreads
Videowave SE 4.0reads
Windows Media Player, version 10reads
Windows Media Player, version 11reads
Windows Media Player, version 12reads
Windows Media Player, version 6.4reads
Windows Media Player, version 7reads
Windows Media Player, version 8reads
Windows Media Player, version 9reads
YouTubereads · end-user license agreement
YouTube Appreads · end-user license agreement / proprietary license
YouTube Space Rioreads

Convert it

To	With	Fidelity	Command and losses
FLAC (Free Lossless Audio Codec) 1.2.1	FFmpeg	Partial	`ffmpeg -i in.mpg out.flac` Audio track only: the video is dropped.
Waveform Audio	FFmpeg	Partial	`ffmpeg -i in.mpg out.wav` Audio track only: the video is dropped.
Matroska 1-4	FFmpeg	Lossy	`ffmpeg -i in.mpg out.mkv` Re-encoded with lossy codecs by default; try `-c copy` to remux without re-encoding when the codecs fit the container.
MPEG 1/2 Audio Layer 3	FFmpeg	Lossy	`ffmpeg -i in.mpg out.mp3` Lossy audio only: the video is dropped.
MPEG-4 Part 14	FFmpeg	Lossy	`ffmpeg -i in.mpg out.mp4` Re-encoded with lossy codecs by default; try `-c copy` to remux without re-encoding when the codecs fit the container.
Ogg	FFmpeg	Lossy	`ffmpeg -i in.mpg out.ogg` Lossy audio only: the video is dropped.
WebM	FFmpeg	Lossy	`ffmpeg -i in.mpg out.webm` Re-encoded with lossy codecs by default; try `-c copy` to remux without re-encoding when the codecs fit the container.

Sources

From Converters (FFmpeg, ImageMagick, Pandoc, LibreOffice), PRONOM, Wikidata. Updated 2026-10-20.

Improve this record JSON