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Video

What is a .mpeg file?

A .mpeg file is a MPEG-1 Program Stream. This is a video format. Confusingly, this extension has been used by 4 different formats over the years — they're all listed below.

This extension has been used by more than one format

4 different formats have claimed .mpeg over the years, so two files with the same extension aren't necessarily the same kind of thing.

How to open a .mpeg file

  • VLC is the answer for the vast majority of video files.
  • mpv is a lightweight alternative.

The registry records this extension against MPEG-1 Program Stream, MPEG-2 Program Stream, MPEG-2 Elementary Stream and others, so software from that family is the most likely match.

How to convert a .mpeg file

  • HandBrake converts to .mp4, which plays on effectively everything.

MIME type

When a .mpeg file travels over the web, servers label it with this MIME type:

video/mpeg

What's a MIME type?

The technical record

For archivists, developers and the merely curious: these are the PRONOM registry entries for .mpeg.

Format nameVersionMIME typePUID
MPEG-1 Program Streamvideo/mpegx-fmt/385
MPEG-2 Program Streamvideo/mpegx-fmt/386
MPEG-2 Elementary Streamfmt/640
MPEG-1 Elementary Streamfmt/649

Got another one?