.3G2 File Extension

A 3G2 file is a multimedia file saved in an audio and video format developed by the 3rd Generation Partnership Project 2 (3GPP2). 3G2 files are designed for transmitting multimedia content over the Internet and are used by cell phones to save video files.

The 3G2 format functions as an updated version of the .3GP format. These two formats are similar as they are based on the ISO base media file format, which was designed to be extensible and flexible for interchanging and presenting media. However, the 3GP format was designed for GSM-based (Global System for Mobile Communications) whereas the 3G2 format was designed for CDMA-based (Code Division Multiple Access) phones.