I have backed up approximately 20 movies using dvd clone and any dvd and about 8 of those backups have the directors commentary being the only audio that plays. Going to the main menu and trying to turn off the commentary does not work. I have had to discard all 8 dvd copies because of this. Any suggestions. I have tried different audio setting in clone dvd but haven't been too successful. The other 12 backups have come out fine but I haven't done anything different when making them. Thanks