I feel sure this has been asked before - and almost sure the answer is "Perfectly OK to defrag the backup files". But has anyone had a bad experience with this? Also, how about the acronis_backup_place.cfg. It is too small to be fragmented, but I had it become unusable. I suspect this is because a defragger that I was testing "optimized" by moving it. Am I right in thinking this file should not be moved to a different sector?