I recently started erasing an external Hard Drive using Disk utility. About a 1/4 of the way through the process I realized I highlighted the wrong drive. I quit out of the process. I am not sure how much of the 3 TB Hard drive was erased. The process line was about a 1/3 of the way. The drive shows up in Utility, but will not mount to the desk top. I am currently running Data Rescue 4 Deep Scan. It is scanning- but gives me 12 days remaining until scan is complete. Anyone use Data Rescue? Is this normal? 12 days to scan? If in the end data Rescue works- so be it, but Is there a faster way to perform this task?