Okay here are a few suggestions....
2)Install the latest Intel chipset drivers
3)Remove the Lite-On DVD-ROM drive temporarily
4)Change the IDE cable to a new one if possible
5)Try flashing B7U9 in safe mode and afterwords burn a DAXON AZ2 at its rated 8x
Use Nero CD/DVD speed to create the test data disc (after it finishes eject the disc from the drive & then put it back in), then run the transfer rate test to see how it reads back in the drive. Then run the scandisc & disc quality tests and see what results they give back..