Convert 3g2 to xvid

What is the difference between .3g2 and .xvid?

Description: 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.; Xvid-encoded video files are digital video files that have been compressed and encoded using the Xvid codec, an open-source video codec designed for compressing video data in order to facilitate faster transmission over computer networks or for more efficient storage on computer disks. Xvid, which is a reverse spelling of "DivX," emerged as a popular format due to its ability to compress video files without significant loss of quality.