Information about MKV file format

Name MKV
Full name MKV - Matroska
File extension .mkv, .mk3d, .mka, .mks
MIME type video/x-matroska, audio/x-matroska
Developed by www.matroska.org
Type of format Container format
Description 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 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 VLC Media Player
Wiki https://en.wikipedia.org/wiki/Matroska