[ @my_update ] 720p.mkv [OFFICIAL]

: The file extension for the Matroska Multimedia Container . MKV files are widely used in digital distribution because they can hold an unlimited number of video, audio, picture, or subtitle tracks in one file. Context and Usage

: These files are meant to be downloaded and played using media players that support the MKV format, such as VLC Media Player or MX Player. [ @MY_Update ] 720p.mkv

: While the tag doesn't specify the title of the media in your snippet, it is usually preceded or followed by the name of a specific movie or show. : The file extension for the Matroska Multimedia Container