I went through eveything in my system. Cables, Power supply, Bios settings, media, software, you name, I tried it. I may have killed the 4th one by accidently having the plextor selected when I tried an EEprom reset on the Litey as a slave but it was still not as good as this one is now. This drive did not like INCD or Drag to Disk, but the Litey does not seem to care. Again my thumbs up for BB customer service. They seem to get a bad rap alot but they really pleased me this time. No, I don't work for them!