Thanks ala42, that did the trick. I was a driver issue with my addon Sata card which both of my optical drivers are connected to. However I still have the issue with my iHas422 with 4L18 fw, and this windata DL media. The drive detects the blank media fine, burns it fine, verifies the burn with no errors, then after the burn it ejects the media and then when the media is re-inserted the drive grinds and grinds trying to read the disk but can't. I eject the media and insert in into my other drive (iHes208) and it reads fine.
Any ideas? TIA