It won't work because it is external. You can fit your tower with an internal Pioneer drive bought anywhere and it will work with iDVD. If you put that same drive in a firewire case it will not allow iDVD to work but Toast will work with it. According to Apple this is licensing issue but others feel it has more to do with promoting new hardware sales. Gerhard On Dec 17, 2004, at 10:02 PM, lilyplant wrote: > are you saying that mac won't support and iDVD won't work with an > external > DVD drive because it's 3rd party?