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| Name | AVI | MKV |
| Full name | AVI - Microsoft Audio/Visual Interleaved | MKV - Matroska |
| File extension | .avi | .mkv, .mk3d, .mka, .mks |
| MIME type | video/vnd.avi, video/avi, video/msvideo, video/x-msvideo | video/x-matroska, audio/x-matroska |
| Developed by | Microsoft | www.matroska.org |
| Type of format | video file format | Container format |
| 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. | The Matroska Multimedia Container is an open standard free container format, a file format that can hold an unlimited number of video, audio, picture, or subtitle tracks in one file. It is intended to serve as a universal format for storing common multimedia content, like movies or TV shows. |
| 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". | Matroska is similar in concept to other containers like AVI, MP4, or Advanced Systems Format (ASF), but is entirely open in specification, with implementations consisting mostly of open source software. |
| Associated programs | Windows Media Player, Windows Movie Maker, Avidemux, AviSynth, Adobe After Effects, Media Player Classic, VLC. | VLC Media Player |
| Wiki | https://en.wikipedia.org/wiki/Audio_Video_Interleave | https://en.wikipedia.org/wiki/Matroska |