I want to disable the subtitles on MKVs. All of them, I don't want any of them at all in Quicktime 7 because they mess up my image sequences. I can't turn them off. I delete the .srt files and have the Perian load external subtitles option unchecked, yet still MKV's load with subtitles and their is no option in the app to turn it off, the subtitles bit is greyed. Sometimes they even load with the title displaying as "English" instead of the name of the file itself. WTF? I have uninstalled and reinstalled both Quicktime Player 7 and Perian with no success.