Yikes! I have an external HD that is loaded with 100G. It is now crashing and needs to be re-formatted and has alerted me to do it asap. I do not have enough room on my iMac to back-up the files, and I have tried creating .dmg files but that is going to take days at the rate they compress. I have another external HD borrowed from a friend, that has enough free space, but it is formatted to a PC. I am currently running 10.5. I don't have the $$ for an external, (I know they're fairly cheap) 1. Does Anyone have a suggestion to back up these files before I lose all of them? 2. Is there a way to partition the PC external and create a temporary space to back-up the drive, then delete the partition when finished? (Without much headache?) please help me.