3G2 is an audio and video format developed by Third Generation Partnership Project for CDMA-based (Code Division Multiple Access) phones. Actually it is an updated version of the 3GP file extension. Both formats are based on the ISO base media file format that facilitates presentation and interchange of the media. The 3G2 format is flexible and requires little storage space that is why it is mostly used by cell phones for saving files. However 3G2 movies can be played on computers but in some cases additional applications may be needed.

MTS is a high definition video extension developed by Sony and Panasonic companies for their high-definition consumer video cameras. Later these companies joined their forces in the Blu-ray Disc Association. AVCHD technology supports 720p and 1080i resolution. The format uses MPEG-2 or MPEG-4 codec for video compression and Dolby Digital AC-3 for audio compression. Blu-Ray players can playback MTS videos without compression.