3GP

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File Format
Name 3GP
Ontology
Extension(s) .3gp
MIME Type(s) video/3gpp, audio/3gpp
PRONOM fmt/357
3GP (or "3GPP file format") is a video or audio container format from the Third Generation Partnership Project (3GPP), intended for use on mobile devices. It is related to 3G2, but with some differences from that format.

It is based on MPEG-4 Part 12.

Identification

3GP files can be identified by the presence of one or more 3GP brands in the "ftyp" box (see boxes/atoms format for information about brands). There are a large number of such brands. They apparently all start with "3g", followed by a letter. An example is "3gp9". Note that brands that start with "3g2" are for 3G2 format.

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