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| Name | AVI | M2TS |
| Full name | AVI - Microsoft Audio/Visual Interleaved | M2TS - BDAV MPEG-2 transport stream |
| File extension | .avi | .ts .mts .m2t .m2ts |
| MIME type | video/vnd.avi, video/avi, video/msvideo, video/x-msvideo | video/MP2T |
| Developed by | Microsoft | Blu-ray Disc Association |
| Type of format | video file format | Media container |
| Description | Audio Video Interleaved (also Audio Video Interleave), known by its initials AVI, is a multimedia container format introduced by Microsoft in November 1992 as part of its Video for Windows software. AVI files can contain both audio and video data in a file container that allows synchronous audio-with-video playback. | M2TS is a filename extension used for the Blu-ray Disc Audio-Video (BDAV) MPEG-2 Transport Stream (M2TS) container file format. It is used for multiplexing audio, video and other streams. It is based on the MPEG-2 transport stream container. This container format is commonly used for high definition video on Blu-ray Disc and AVCHD. |
| Technical details | AVI is a derivative of the Resource Interchange File Format (RIFF), which divides a file's data into blocks, or "chunks." Each "chunk" is identified by a FourCC tag. An AVI file takes the form of a single chunk in a RIFF formatted file, which is then subdivided into two mandatory "chunks" and one optional "chunk". | The BDAV container format is a modification of MPEG-2 transport stream (ITU-T H.222.0 | ISO/IEC 13818-1) specification for random-access media, such as Blu-ray Disc, DVD, hard drives or solid-state memory cards. It is informally called M2TS. |
| Associated programs | Windows Media Player, Windows Movie Maker, Avidemux, AviSynth, Adobe After Effects, Media Player Classic, VLC. | ALLPlayer, MPlayer, VLC, PotPlayer |
| Wiki | https://en.wikipedia.org/wiki/Audio_Video_Interleave | https://en.wikipedia.org/wiki/.m2ts |