Sounds like your DVD drive is on a SATA interface. Others have had similar problems. This guy (
http://www.sirlab.de/linux/contact.html) might be able to help. (He offers to help on that page.) I found this info here,
http://www.sirlab.de/linux/debian_dell_d610.html but it looks like it only addresses an already installed sysem, and a dell with debian at that, but it might help. Have you tried Ubuntu ? They have the best hardware support I've ever seen. You might want to give the fiesty fawn version a go, it's in beta I guess, but for new hardware like yours I would want to latest and greatest, to hope for uptodate drivers for my new hardware.
Good luck...