2 things I've noticed with you log. 1) Edit out you license number, it begins with 5C. You don't want someone else using your number. 2) Are you trying to duplicate a retail disk? If so, you have decryption issues you have to address first.
DMA needs to be on, heres a guide to turn back on http://forums.afterdawn.com/thread_view.cfm/260038 You have Roxio installed, it clashes with Nero, to remove, run this zapper http://www.softpedia.com/get/Tweak/Uninstallers/Roxio-Zap.shtml
