3G2 (3GPP2 file format) is a multimedia container format defined by the 3GPP2 for 3G CDMA2000 multimedia services. It is very similar to the 3GP file format, but has some extensions and limitations in comparison to 3GP.
3GP is defined in the ETSI 3GPP technical specification. 3GP is a required file format for video and associated speech/audio media types and timed text in ETSI 3GPP technical specifications for IP Multimedia Subsystem (IMS), Multimedia Messaging Service (MMS), Multimedia Broadcast/Multicast Service (MBMS) and Transparent end-to-end Packet-switched Streaming Service (PSS).
3G2 is defined in the 3GPP2 technical specification.
Device Support
*Most 3G capable mobile phones support the playback and recording of video in 3GP format (memory, maximum filesize for playback and recording, and resolution limits exist and vary).
*Some newer/higher-end phones without 3G capabilities may also playback and record in this format (again, with said limitations).
*Audio imported from CD onto a PlayStation 3 when it is set to encode to the MPEG-4 AACcodec will copy onto USB devices in the 3GP format.
*The Nintendo DSi supports .3gp on an SD card.
Software Support
When transferred to a computer, 3GP movies can sometimes be viewed on Linux, Mac, and Windows platforms with MPlayer and VLC media player. Programs such as Media Player Classic, K-Multimedia Player, Totem, RealPlayer, QuickTime, and GOM Player can also be used.
3GP files can be encoded and decoded with open source software FFmpeg.
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