Removing foreign soundtracks from .mkv

[leamingtonspaceman]

I've got a few .mkv files and they have English DTS on them but also foreign DD (AC3) soundtracks. If I load them into TSMuxer I can see the foreign audio listed. I can then highlight the foreign track and remove it...but what do I do then to keep the file as .mkv?

I've tried converting the files with mkv2vob but for some reason, the output file always defaults to the foreign language track? I'm using my PS3 to play the files but have no idea how to switch audio tracks on it?

Ideally, I'd just like to strip the foreign audio from the .mkv and retain it as an .mkv.

Thanks in advance to anyone who can help me out with this.

[Baldrick]

mkvtoolnix / mkvmergegui, open mkv, remove track, save as a new mkv.

[leamingtonspaceman]

mkvtoolnix / mkvmergegui, open mkv, remove track, save as a new mkv.

Thank you