MKV files can hold an unlimited number of video, audio, and subtitle tracks. This is particularly useful for media that requires multiple language options or director commentary.
Because MKV is a container rather than a single codec, it requires a player that can decode its various streams. MKV Files Explained - Adobe M*a Tu**** S****m 720pHD0.mkv
What is an MKV file? MKV files are container format files, saved in the Matroska multimedia container format. As a container file, MKV files can hold an unlimited number of
720p (1280x720 pixels), which is considered Standard High Definition (HD). 720p (1280x720 pixels)
These files often include metadata, cover art, and chapter markers, making them popular for archiving movies and TV shows.