I bought new 61.5 IBM 7200rpm EIDE ATA100. I have ATTO ATA66 PCI in the G4 400mhz. Anyway, I tried formated 61.5GB from Drive Setup in MacOSX. It showed me that I got 48gb? Where did 20GB go? Does mac support beyond the 61.5GB? I also tested on 9.1 Mac and using Drive Setup to formated. It still showed 48GB ARGHHH! Huh!? Help me!