[ReddSmith]

I have three partitions (volumes) on an external HDD. One of the volumes is named "Work". I'd like to clear Work to zeroes, then install the OS from my DVD's to Work. I don't want to disturb the other two partitions. I'm afraid if I use Disk Utility, with the Zero Out Data option, to erase Work, that the definition of Work will also be erased; that is, Work will no longer exist. Then, how do I redefine/reestablish Work on that disk?

I have observed that when SuperDuper is performing an erase-then-copy operation, the destination volume icon disappears from my desktop (during the erase I guess), then reappears a second later with the original volume name. So it seems like the volume can indeed be redefined.