Nero6 Blue Screen when copying DVD

Hi, New to the forum. Appreciate any help.
Lately when I try to copy a DVD (for archive puposes of course), I get mostly through the burn when I get Blue screen OD. and the following: “OSVer : 5_1_2600 SP : 2_0 Product : 256_1” I can how ever copy disks with DVD Shrink with no problems. Can also make data disks with Nero ok too. Have been unable to pull up any usefull info on the web. I don’t remember a specific driver/SW/ HW item that could have caused this, but its very posible one has.Any ideas?

Dell 5100, XP-Pro, 2.4G, 80G HD, Radion-7500 Video, Norton IS-2004(yes its on my list to buy Norton IS-06 soon!)