According to VideoHelp, 8x Fuji's are either gonna be TYG02, FUJIFILM03, or ProdiscF01. TYG02 is easy to tell since it will say "Made In Japan" instead of "Made In Taiwan", and of course, is great media. ProdiscF01 is the one I've run into in the past, and boy does my Plextor hate it... I only burn it at 4x, and the scans come out worse than old ProdiscS03 4x media did at the same speed! FUJIFILM03 I have not had the pleasure of testing.