I've also used a LaCie firewire DVDRW for what seems forever (mine came with Toast Titanium 6 and the model number is 300984, probably the same model just with a new updated model number) - without any problems and very reliable (hardly ever use any of my Superdrives). I just got a used Mini (2 GHz) running 10.4.11 and did have to download their latest disc recording support (driver?) because System Profiler wouldn't show the burner at first; as soon as I installed it, the burner showed up. According to LaCie, that is no longer necessary under Tiger, but obviously, in my case, it was. Anyway, it's working fine and I like their products (have several of their hard drives as well).