MPEG-1 Layer 3

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Karlheinz Brandenburg, second from right, in 1987 with the team he led that worked on audio compression technology. From left, Harald Popp, Stefan Krägeloh, Hartmut Schott, Bernhard Grill, Heinz Gerhäuser, Ernst Eberlein and Thomas Sporer.

Motion Picture Experts Group-1 Layer 3 (commonly abbreviated MP3) is a (so-claimed) proprietary but widely used media encoding format for digital audio.



[1] [2] [3] [4]


For more details, see: Audio#ID3


The MP3 Format has had a long and tumultuous history of lawsuits and infringement cases which have gone to the US Supreme Court and European Tribunal (Europe's Collection of Supreme Courts).

For more details on MP3 see: wikipedia:MP3

External Links


  1. Audio Codec - Moving Picture Experts Group Audio Layer III(MP3):
  2. Happy Birthday MP3!:!
  3. IETF - The "audio/mpeg" Media Type:
  4. A More Loss-Tolerant RTP Payload Format for MP3 Audio:

See Also

Audio | Music | MP4