Create, extract, and analyze Matroska MKV files with MKVToolNix
MKVToolNix is a set of tools you can use to get information about Matroska (mkv) files, extract tracks/data from Matroska files, and create Matroska files from other media files. Matroska is a multimedia file format aiming to become THE new container format for the future.
mkvmerge and mkvmerge GUI (or just mmg) are two programs included in the mkvtoolnix package. mkvmerge can read a lot of different multimedia files and put their contents into Matroska files.
Unfortunately this is a command line program, and not everyone is comfortable working on the command line. This is where mkvmerge GUI comes into play. It is a GUI that provides the user with an intuitive but powerful interface to mkvmerge.
MKVToolNix needs to become easier to use.