Products of Corecodecs
Multimedia \ Video
mkclean is a command line tool to clean and optimize Matroska (.mkv / .mka / .mks / .mk3d) and WebM (.webm / .weba) files that have already been muxed. It reorders the elements with the Cues at the front, so your Matroska files are ready to be streamed efficiently over the web. It also removes elements not found in the Matroska specs and the extra.
Freeware download of mkclean 0.8.1, size