My '08 mac pro has a pioneer dvr-112D in it and it seems to be extremely slow when ripping DVDs in windows/bootcamp. It will take 30+ minutes to rip a DVD whereas it only takes 9 minutes on my PC. I ran the Nero discspeed benchmark and it says the drive is only reading at ~10X max at the end of the test. The drive should be good for 18X right? This happens in both XP and windows 7. I've checked that DMA mode is enabled so it's not an issue of it being in PIO mode. Any ideas?