I agree with Bill. I recently installed, for the first time ever, an internal DVD-RAM LG GSA-H10A in my G4/400/AGP, it took a few minutes, and it works wonderfully. It's a multi format driver and the cost is only a third of an external driver, in my case the equivalent to just over 50 US dollars (i live in Sweden). I can also vouch for Patchburn, it immediately recognized this driver, so now it works with Finder, itunes, and Toast. Read the intructions how to install from a pdf-file (choose Digital Audio), available to download from: http://www.apple.com/support/manuals/powermac/ Cheers!