no what i was saying in reply to your subject of 16x discs is, when i have burned them at 4x the scans haven't been as good as those burned at 8x and those burned at 16x havent been as good as those burned at 8x
i guess the firmware of a 8x burner would/should compensate for this though, but this is only a guess as i dont have an 8x burner any more