Hi folks The following is a bit long-winded I'm afraid. I have been using Drive Backup 9 Pro for approx 2 yrs to image my HDD on a weekly schedule. Over the weekend, I decided to do a complete "spring clean" of the drive:- remove temp files, cull the registry and consolidate free space/defrag. It is the first time that I have done this in the 2.5 yrs of ownership of my notebook. "CCleaner" presented me with 200 lines of redundant registry entries, and approx 6GB of temp files! So, backed up Hdd (image file size 62GB) and "killed" the lot. Rebooted to make sure I still had a viable m/c. Everything o.k Used "MyDefrag" to optimise the drive then another backup to preserve it all. It was the image size of this last b/up that caused the alarm bells to ring, it being reduced from the above mentioned 62GB to just 38GB. Is there anybody out-there who can can either reassure me that the reduced image size is to be expected or that I do, in-fact, have a problem. Thanks in advance.