hello, i just bought (2) lite-on blu-ray burners for my computer (to watch blu-ray movies on my tv, burner(back-up) blu-ray movies and dvd's and cd's. plays blu-ray movies ok, try to burn a dvd using nero 9 and the disk fails, says "DMA-Driver error, crc-error" burning a dvd in a regular dvd burner (lite-on also) works fine. is there a setting i need to change? driver update i need? i installed the driver disc it came with but it doesn't burn a dvd sucessfully yet? any ideas thanks again mike. (model # is DH-4B1S08C)