Binary package “mkvtoolnix-gui” in ubuntu precise
Set of tools to work with Matroska files - GUI frontend
Matroska is a new multimedia container format, based on EBML (Extensible
Binary Meta Language), which is a kind of binary XML.
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The mmg tool is a graphical user interface for the mkvmerge program, which
allows one to create Matroska files from other formats.
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This package also contains a graphical version of the mkvinfo tool, which
allows to get information about a Matroska file.