I also have some powering issues with my dvd drive. I bought a D-Link 7port 5volt hub that is giving me some problems on my system. My DVD drive draws a lot of power (it`s rated 1,5A). A USB port usually gives you about 500mA. What kind of drive you have? I have a Slimline DVD Enclosure that i hooked up with it`s own 5v connection (taken from a 12v with a Motorola MC78T05, google this). Now i need to figure out why my USB won`t be recognised right by Windows. But that`s not a problem that`s caused by the dvdrive power. More a Windows or my Active USB cable with USB hub problem.