I have been using DVDFab for some time and i just upgraded to version 5. now it wont recognize any audio on the disk. (Red Dwarf: Series 1) dont know what else to try. i would appreciate and help. Video burns fine…just no sound 
Sounds like you need to reload an ac3 codec for the software…
Moved to DVD Fab forum 
do you have the audio selections on the right side selected?
if so are you selecting DTS audio. many dvd players do not support DTS audio.