A common issue I've found with Dell computers is that when you connect a CD/DVD device to one of the onboard controllers, you need to make sure you change the BIOS to let the system know it is there. Do this by changing it to auto or CD or whatever, just don't leave it at the none setting. It definitely causes DMA activation issues on other Dell products even with current BIOS revisions, and it could be your problem in this case.
I would also try to avoid using the Intel IDE drivers if you can, as I recently had problems with their driver on a server which was using the Intel RAID. Since I needed to use the Intel drivers in this case, I activated a second IDE controller which was available on this particular machine, and the problem was resolved. In this case the Intel drivers were causing read compare failures on burns with an LG 4163B f/w A102, A103 and A104. I also swapped the drive to no avail, and finally resolved it by moving it to the non-Intel IDE controller.