CS0T is the best firmware for your drive. liteons like +r media better, but quality -r media is good, too.
you can't go wrong with the patched version you mentioned.
FBD is fast burn for +-r media, FBDX is also quality patched.
just flash it, make some test burns and see how the play.
you can also do a disc quality scan with nero cd-dvd speed. use the search for detailled infos.