I tried various options including all the programs on UBCD......they all reported that the drive had been wiped by writing zeros to the drive or similar. I did a lot of this in a pc I have as well but after every attempt I tried the drive in my mac and it continued to show the drive as having 0% capacity. It showed up in the bios of the pc as a 320 gb drive but when I tried to install windows to it it could not find the drive....
I appreciate the help but I am about to throw this drive in the trash