Let me clarify:
I did not use imgburn to convert. It was a .mkv vile and it had subtitles. I used another 3rd party software to convert the mkv to mp4 to get rid of the subtiles. I want to play this on Blu ray player connected to HDTV. I was hoping imgburn could burn the mp4 to blu ray without having to reconvert again like all the other blu ray sotfware wants to do. This has turned into a time consuming nightmare just to get where I am now. All help is appreciated.