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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MKA is a free Matroska Multimedia Container format that can store multiple audio, video, image, and subtitle tracks. It’s used to save typical multimedia content such as TV shows and movies and comes with a .mkv for video files. When used on audio files, it features a .mka filename extension, .mks for subtitles, and .mk3d for stereoscopic video files.