Shane, I just wanted to jump in and thank you for the reference to FreeFileSync. I have been using another file backup/cloning tool for years. One of my backup sets of over 200,000 files was taking well over 5min to do the source/dest compare before the backup copy operation. FreeFileSync takes 3 seconds and that's not even using parallel operations that their donation edition supports. Still trying to figure out how they do the compare so fast as I see no resident process doing compare stuff in the background...Anyway, very happy with it. Thanks.