Have ya updated the drivers from iomega site? Lots of times there are updates available even for new products. I have a BTC burner and had to update mine when I bought it.
I am using a 2.4 ghz with around 800 mb ram and Nero 6 and it takes around 2.5 to 3 hrs to burn at 4 gig disc, including the recode, so 10 hrs sounds about right with an 800mgz processor judging from the length it takes me to burn a DVD.
As I understand it the processor usage during a DVD burn is very high and ram doesn't have much to do with the length in time it takes to burn a DVD.
Try downloading and running CCleaner, it will take unnessary crap off your puter
http://www.ccleaner.com/and check for spyware and adware with adaware
http://www.lavasoftusa.com/software/adaware/and spybot, both are free, don't forget to update them before using
http://security.kolla.de/Also when I got my burner I had to update Nero 6, go here for updates to Nero
http://www.nero.com/en/nero-up.phpAnd shut down all excess running processes such as anti virus, screensavers ect. to give more resources to puter while burning.
Try these and see if it helps, sorry I don't know what could be causing the reboot problems, here is a site that may help with that issue
http://www.mrbass.org/dvdnewbie/Good luck and feel free to pm me if this doesn't help, my son is a whiz with pcs and I can check with him.