@ Rocket 9,
Welcome to the Forum.
Unfortunately both N e r o and Roxio arenâ€™t noted to be good error free burning programs.
Suggest visiting CD Freaks General Software Forum Read First posting titled Free Downloads (http://club.cdfreaks.com/f3/free-downloads-your-welcome-128075/) and try some of the software programs listed under â€œCD/DVD Burningâ€ software programs such as Burn4Fee, BurnatOnce, DeepBurner, CDBurnerXP.
As a pro-active precautionary step also suggest replacing the IDE Cable(s) that both of your DVD Burners are connected to with a known proven Ultra DMA (80-Conductor) IDE/ATA Cable(s) (http://www.pcguide.com/ref/hdd/if/ide/confCable80-c.html) to alleviate the possibility of a defective IDE Cable(s) as the cause of your problem.
Also ensure that both of your DVD Burners are operating in the DMA mode and not in the PIO mode ->