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File extension	.3gp
Category	Video File
Description	3GP is a file format designed for video on mobile phones. 3GP is a container that facilitates the creation, editing, transfer and viewing of video and audio using a 3G mobile phone. It is supported by most smartphones, including the Apple iPhone.
Actions	3GP Converter View other video file formats
Technical Details	3GP is based on the structure of MPEG-4 Part 14, otherwise known as MP4. 3GP was designed to reduce the overhead in terms of storage and bandwidth to allow video files that could be handled by smartphones.
Associated programs	QuickTime Player VLC Media Player Windows Media Player
Developed by	3rd Generation Partnership Project (3GPP)
MIME type	video/3gpp audio/3gpp
Useful links	More Information on 3GP Official Specification from 3GPP Organisation

File extension	.3g2
Category	Video File
Description	3g2 was originally developed by the 3rd Generation Partnership Project 2. It is an audio and video format for use on 3G phones. It can also be played on some 2G and 4G phones. It is designed for transmitting multimedia files over the internet and is mainly used for viewing videos on mobile phones. 3G2 is also known as 3GPP2 which is based on the MPEG-4 standard which was derived from Apple's QuickTime. You are probably familiar with it if you have an Iphone.
Actions	3G2 Converter View other video file formats
Technical Details	3g2 is very much like MPEG-4 Part 14 (MP4) but a much more simplified version of it. It is designed to reduce bandwidth requirements in order to accommodate mobile phones. It is also designed to decrease storage - it stores video streams as MPEG-4 Part 2 or MPEG-4 part 10. It stores audio streams such as AMR-WB, AMR-NB, AMR-WB+, HE-AAC or AAC-LC. The idea is that 3g2 stores and transfers the most significant bytes first.
Associated programs	Apple QuickTime Player VideoLAN VLC Media Player Microsoft Media Player Classic Totem GOM Player
Developed by	3rd Generation Partnership Project 2
MIME type	video/3gpp audio/3gpp
Useful links	Find out about more 3G technologies A handy troubleshooting guide for trying to open 3g2 files

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