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Old 21st March 2008
adicoto adicoto is offline
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Usually it's MPEG4.

Mobile phones use 3GP, a simplified version of MPEG-4 Part 12 (a.k.a MPEG-4/JPEG2000 ISO Base Media file format), with the .3gp and .3g2 extensions. These files also store non-MPEG-4 data (H.263, AMR, TX3G).

http://en.wikipedia.org/wiki/Mp4

http://www.3gpp.org/ftp/tsg_sa/TSG_S.../SP-040643.pdf

Nokia E65 specifications :

Multimedia
Video and audio streaming (3GPP & Real Media)
Music player (MP3/AAC) and media player
Open Mobile Alliance (OMA) digital rights management (DRM) 1.0 with forward lock

http://europe.nokia.com/A4344228

LE: can you send a link to such a file for testing purposes ?
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