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3G2, 3rd Generation Partnership Project Multimedia File (.3g2)
The 3G2 Video file format
The 3G2 file extension is an updated version of the 3GP file that has been used in the past, but is now outdated. The 3rd Generation Partnership Project (and the 3rd GPP – 2 Project) created standards related to how various forms of multi-media are delivered, especially via mobile networks. One of the new standards set was the use of 3G2 in streaming various types of multimedia files over the world wide web. This type of file is most frequently used in cell phones and can be used by any phone that is 3G capable. 3G2 movie files can also be played on most computers, although additional programs may be required.
Technical details of 3G2 files
3G2 resembles the MPEG-4 Part 14 series (cf. MP4), but is less complicated than its MPEG relation. Using this file type reduces bandwidth requirements, which makes it ideal for mobile phones due to the decreased bandwidth needed and the lower requirements for storage space. Video streams use the MPEG-4 Part 2 and MPEG-4 Part 10 standards to reduce file sizes. Audio is stored as AMR-WB, AMR-NB, AMR-WB+, He-AAC, and/or AAC-LC. This is all accomplished by allowing the 3G2 files to store and transfer important bytes, giving priority to significant information. 3G2 files are designed for CDMA-based phones.
More information about the 3G2 file format
Download example.3g2 file (1.6 MiB)
|Associated programs||Microsoft Media Player Classic
Apple QuickTime Player
VideoLAN VLC Media Player
|Useful links||More information on 3G2 files|
|File conversion||Convert a file to 3G2|
|Developer||3rd Generation Partnership Project 2|