Ok been fidling a bit with Firmware and my LiteOn 40125W.
Recently upgraded it to firmware WS09, and suddenly got C2 errors which I had never seen with the TDK (Ritec) media I use.
So flashed back to WS03 and all is perfect again.
These are the results from a few tests I did with WSES, all these burns where done at 16X, and burning slower seems to pay off:
Now I also tried to flash it to a 48125W and then burnt a disc, this time 48X rated media, same everyting, Ritec etc, just 48X, this is the result when burning full speed (48X)
So needless to say, I’m back to 40125W and burning at 16X.
(So now I know people will say, why get a 40X when only burning at 16X, well I didn’t buy a 40X, I originally bought a 16X, but it was replaced under warranty with a 40X)