I've had ATI 11 for 2 weeks and I am backing up to a 500G external drive. My purpose is to have a backup for disaster recovery. I have 2 drives I am backing up; an 80G (43G used) and a 120G (60G used) mostly music, photos and video. I made a full backup that was 90g using normal compression. I then made an incremental backup that was 90G. My plan was to make a full backup every 2 weeks with 2 incrementals in between the fulls. I only have 400G allocated for this on my external drive so the math says I can only make 4 full backups. Question 1: are the incremental backups supposed to be the same size as the full backup? If this is the case I might as well just make a full backup every week and forget the incrementals. Question 2: is it OK to backup both of my drives to the same image or should I make separate backups, one for each drive. Any help is appreciated.