Boot Disk Hanging at 0% ?



Hi folks
I made and inserted Nuke disk to clean hard drive on XP Home. The screen prompt said " erasing all data" and it went from 0% to 100%. Then the screen said "wiping all data", but hung on 0% for around thirty minutes. I exited the programm.
1. Does that mean that I have successfully erased all data but not washed it
2. Or does it mean my installation has failed completely beacause I exited too early.
Thanks -carl