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 maud file extension is associated with the Amiga MAUD audio format, developed by Electronic Arts and Commodore in 1985. The MAUD is used for an 8 or 16 bit Amiga sound format. Most likely obsolete.