on 9/20/05 11:37 PM, Eddie Hargreaves wrote: >> The important thing to realize is that the MacOS system software is >> installed for the Mac hardware on a particular model, and once you don't >> have that model, it's useless. > > This is not true. I can boot my iMac G5 off of my iBook G4 and vice versa. Even if you couldn't boot from your back-up drive to a new computer, you could still use migration assistant so that calling the cloned drive "useless" might be going a little too far.