I did it with a DVR-110, and it works just fine, but I never pay attention to the burn speed, just telling Toast to burn at the best speed. And, I don't think that I even own any 16x media. So, I can't really be of any help to you. --Steve At 10:33 AM -0500 4/18/06, Steve Jensen wrote: >I purchased a Pioneer DVR-109 some month back. It was installed into a >firewire/usb2 enclosure. This enclosure has an Oxford 911 chipset and >claimed to support 400GB drives, so it would seem to be able to support 16x >burns. It doesn't! The instructions and other propaganda state that it >needs an 80wire cable to support the 16x. I understand this also called a >high density IDE cable. I can't find anyone selling this high density >cable to even try it. Has anyone put this burner in a firewire enclosure >had problems with burning at 16x?