M2T (MPEG-2 Transport Stream) is a video file format mainly used in digital video broadcasts (DVBs) and Advanced Television Systems Committee (ATSC) standards. Initially, it was developed for satellite and terrestrial broadcasts. Today, it’s common in most HD camcorders, and the video is stored in DV and MiniDV tapes. It supports resolutions of up to 1080x720.
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AC3 is an audio format designed by Dolby Digital to offer surround sound listening. This format is available on most Blu-ray and DVD media files and is played using a Dolby Digital DVD Player. Interestingly, AC3 can be output in up to six speakers of a home stereo system. On a computer, AC3 can be opened on VLC Media Player, Apple QuickTime Player, and Windows Media Player.
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