I have my 1TB MyBook configured for my iMac to use a Firewire input. I have a new MacBook air and it does not support firewire and I have been unable to figure out how to reformat the MyBook to use the USB port
Also, when I try to use the WD Disc Utility, it does not recognize the MyBook as an existing drive because, I guess, it is configured as a Time Machine drive.