I have been using AC for over 6 years and when I use AC Backup it generates a 4.3 gig file including all of my scanned info. You need to look at what is taking up so much space - AC Backup creates backup files under AC every time it runs, use the utility to erase old ones. Also check your settings on scanning to see how large each scanned file is - make sure you are not scanning at super high resolution (you don't need to). We have scanned over 1500 old charts plus have been paperless for almost 2 years and our files are not large.
