MPG is an extension used for files compressed with MPEG-1 or MPEG-2 standard. MPG files can be played on Windows, Mac and any mobile devices. The first versions of this format were significantly limited, supporting low video resolution and limiting data bandwidth, but latest standard updates allows it to be used even in HDTV broadcasting.

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.