I am curious as to why my differential backup is nearly as large as my full backup. My differential backup is appended to my full one, meaning Acronis knows that it is to add whatever changes have occurred since the full backup. What puzzles me is that I ran my differential backup immediately following my full backup. I was not thinking that there should be much of anything to backup. I do have Norton GoBack installed, but made sure to clear its history AND disable it to be sure that it wasnt writing any history information as my full backup was progressing. I am now going to perform an incremental backup to see if it may be any smaller, but I cannot see how since both types of backups should be exactly the same after performing the full backup. I am backing up to DVD R/W optical media. Does anyone know whether this is normal behavior for Acronis?