I've updated the list on <URL: https://wiki.debian.org/DebianMultimedia/PlayerSupport >, and now kmplayer is listed with 57 mime types supported in its desktop file. The only package listing fewer mime types in itsd desktop file is dragonplayer.
For comparison, smplayer list 151 mime types, and I suspect they use the same underlying mplayer engine and support the same set of file formats. Please review the list of mime types listed in the kmplayer desktop file to ensure it is correct and complete. -- Happy hacking Petter Reinholdtsen