I had one disk copy where it eventually ended after about an hour. I had another where it did not ever end. In that particular circumstance, I cancelled the copy, set Chkdsk on reboot and rebooted the server. I then reinstalled SSR. After this the drive copied fine, and I have not seen the "Moving date from unused area" since.
I think partly there's a diction problem here. I think we're watching a hung process, and the label is mind-boggling. Why are we waiting for data from an unused area to be copied in the first place? If it's from an unused area, why do we need it copied? Why is there even data in an unused area?
GaryK