Elfen, the only reason I got the 160GB drive was because it was cheap and easily available. It was also advertised as 'new' with Amazon Prime shipping. Turns out it was a 2006 drive and didn't work no matter what machine I put it in; my MDD dual boots in both OS X and OS 9 and it wasn't recognised by either one. Nor was it recognised by the OS X 10.4 boot disk, so it was a dud. max1zzz has a 10GB drive with System 7.5 on it; that should solve all of the issues. I may eventually go the CF-IDE route, which I've done in my PowerBook to great effect. However, I'm also curious about the SD-IDE adapters as well, as SD media is so inexpensive. Has anybody had any luck with one of those?