I have two movie files,mp4 and mkv i have managed to put subtitles on both files but every time i try to convert them into mpg to burn on a dvd (to play on dvd player) i lose the subs, i use handbrake and have just downloaded mkvtoolnik, to add the subs,i use burn to convert to mpg and burn disc,any suggestions most welcome as this is doing my nut thanks