MKVToolnix Download
MKVToolnix is a set of items that will help you create, edit and inspect Matroska files. They do for Matroska what the OGMtools do for the OGM format and then some. With these tools one can get information about (mkvinfo) Matroska files, extract tracks/data from (mkvextract) Matroska files and create (mkvmerge) Matroska files from other media files. Matroska is a new multimedia file format aiming to become THE new container format for the future.