mkvtoolnix-gui 2.9.8-0ubuntu1 (armel binary) in ubuntu karmic

 Matroska is a new multimedia container format, based on EBML (Extensible
 Binary Meta Language), which is a kind of binary XML.
 .
 The mmg tool is a graphical user interface for the mkvmerge program,
 which allows to create Matroska files from other formats.
 .
 This package also contains a graphical version of the mkvinfo tool,
 which allows to get information about a Matroska file.