I think the problem lies in the program that you're using to play these m2ts files. When you go to rip the movie under the languages window you'll either have 'English DTS-HD Master/5.1' or 'English AC-3/5.1' usually. When ripped with the AC-3/5.1 then no matter what you play it in you'll get English like you've chosen. However if you only have the choice of DTS-HD then some programs such as WMP don't support the HD audio and chose the next best AC-3 track, which usually is French.
Cyberlink PowerDVD 10 does support HD audio tracks so there's no problems playing it through there on your PC. However if you're like me and are trying to stream these rips to your PS3 through WMP then you're in trouble. I haven't found the solution yet, but know where my problem lies.
Clicking the 'Remove HD Audio' box doesn't work because then it's just silent. And after-all, if I'm ripping my bluray movies I might want HD audio with it too otherwise it just seems futile.
Oh, and I'm using DVDfab 7.0.6.7