RFC 3003 (rfc3003) - Page 2 of 5

The audio/mpeg Media Type

RFC 3003               The audio/mpeg Media Type           November 2000


   size to the stream.

   NOTE: MPEG audio was not designed as a file format but as a format
   for transmitting audio streams.  As such, it does not have any well
   defined way of including meta data along with audio information.
   Some products embed meta data using zero amplitude frames or
   disguised as transmission errors.  Others embed the MPEG data in WAV
   format.

   NOTE: The audio/MPS mime type is in use in addition to the
   audio/mpeg.  The MPA [RFC 1890] sub-type refers to MPEG audio when it
   is segmented and send as a Realtime Transport Protocol (RTP) payload.

2.  Registration Information

   To:  Subject: Registration of MIME media type
   audio/mpeg

   MIME media type name: audio

   MIME subtype name: mpeg

   Required parameters: none

   Optional parameters: none

   Encoding considerations:

       For use over internet it is assumed that lower layers take care
       of transmission errors, so audio/mpeg data MAY include MPEG
       frames generated without the optional cyclic redundancy checks
       (CRC) for improved audio quality.

       The MPEG audio data is binary data, and must be encoded for
       non-binary transport; the Base64 encoding is suitable for Email.
       Note that the MPEG audio data does not compress easily using
       lossless compression.

   Security considerations:

        MPEG is a tagged data format, and some tags are available for
        private use.  As such, arbitrary material could potentially
        be transferred in the MPEG stream, including executable content.
        Tagged data containing executable content SHOULD never be sent
        and MUST not be executed if it is received.






Nilsson                     Standards Track