Is a project with unlimited possibilities, the basic idea of which is the creation of an open source media container that works across formats. MKV format involves multiple selectable subtitles, video and audio tracks. Besides, MKV provides an online broadcast, instant rewind of the file and the partition of files into heads.
The AVR file extension is a data format known as Audio Visual Research File. AVR files were developed for use on Apple Macintosh computers. They were specifically, used for the older 680x0-based Atari ST computer systems.