I have a system I built awhile back (5 years ago?).. and I recently got the sony optiarc from newegg.. it has lightscribe.
Well it is Sata and so is my Hard drive. I had an old IDE Cd drive which i removed. Whenever the Sony Optiarc is plugged in via Sata the pc will not boot up. It makes an attempt, the fans spin and the lights flash but eventually it turns off. It just keeps doing this until I hard close it.
If i unplug the sata cables the computer boots fine.
I have an older computer with a SiS-661GX Board and 3.6 ghz processor.. 2gb ram and a 350 watt power supply.
Definitely sounds like it COULD be the power supply. Although that would be pretty unlucky if the difference between the old CD drive and the new DVD drive was enough to push it past the tipping point.
One thing you might check -- does the system do this when the sata POWER cable is plugged in to the DVD drive but not the data cable? Or does it only happen when both are plugged in?
If it works with the data cable unplugged but fails when both are plugged, it would suggest to me that there's some kind of compatibility/BIOS/driver conflict going on and that's what you should look at first. If it happens regardless of the data cable, I'd start with the power supply.