Error copying image file to hard drive with CDRWIN

[JRow]

Has anyone gotten this error while trying to extract an image with CDRWIN:

"Unexpected failure writing to hard disk (disk full?)"

The extraction seems to be going along well until about 98%, then the error message pops up. I am positive that my hard drive is NOT full, so why is this happening? What settings should I change to correct this? Or, should I just burn the backup copy with only 98% of the image? Thanks for any help...