Re: A computer question to those who know...
You have to find some way to put a low-level format on these disks so you can re-partition them and reformat them. Unfortunately, I use SCSI disks as a rule, and my low-level format utilities are part of the SCSI bios so this may not be much help.
I have also had real good luck with Partition Magic, a program that gives you some great flexibility in dealing with disks, formats, partitions, etc.