Matroska

Matroska is a container format for storing or streaming video and audio files. The Matroska format has many features, such as a DVD-style menu system.

File-extensions: .mkv .mka .mks

Compatability

VideoLAN can only read matroska files. Also, some of the video codecs that can be used inside this type of file are not supported by VLC. Most notably, this includes the RealVideo 9 and 10 formats.

In French:

Site officiel: http://www.matroska.org/index.html.fr

Un article framasoft: http://www.framasoft.net/article2113.html