For those wanting to make a BD, here's a perfect guide on how to do that:
http://www.bitburners.com/articles/convert-mkv-files-to-blu-ray-or-avchd-for-playstation-3-using-tsmuxer/4019/
I checked and the MKV open is TS muxer without trouble. Oh and if you want to include subtitles, they have to be in SUP format for BD.
Also link to fixed German audio is now up on teh, Spanish to follow soon.
@7FN: If they are the original files, you need to set a delay of 1017ms.