I currently have a movie in Spanish with English subtitles in MKV format. I ran the file through MKVtools and put it on the AppleTV2 preset and set subtitles to "burn." However, in the final MP4 file, the subtitles are not burned in when I play the new file in VLC or Quicktime. They don't show up at all. I've tried to convert it twice with MKVTools and no luck. Can someone tell me how to fix this or the proper settings to use in MKVtools to actually burn the subtitles into the movie? Thanks!