I have a DVD of a show I was in that was rendered to disk in Japan. I suspect the disk was never finalized because I can't watch the footage in any dvd player and every computer I put it into reads it as a blank dvd. I know the footage is on the disk because I can preview the footage on my PC (at 3x speed), but there is no audio. I want to somehow finalize the disk so that I can watch the footage on a computer or dvd player. Any suggestions?