Are file types that wrap video, audio and subtitles in a single files.
Popular container formats include:
https://en.wikipedia.org/wiki/Matroska
Open standard.
Extension stands for: "Matroska video".
https://en.wikipedia.org/wiki/WebM
Derived from mkv.
Open standard by https://xiph.org/
Before 2007, used for audio only or audio video.
Since 2007, https://xiph.org/ recommends using it only for audio only Vorbis, and using ogv for video.
One of the extensions for MPEG-1 video.
It is possible to concatenate mpg files directly via cat to get a larger one.
More linked to Apple.
Often contains H.264 or other MPEG-1
https://en.wikipedia.org/wiki/MPEG_transport_stream
http://askubuntu.com/questions/3645/how-do-i-convert-ts-files-into-something-useful
https://en.wikipedia.org/wiki/MPEG_program_stream
Created by Microsoft.