Why are incremental backups so big?
I noticed that my 1TB backup disks seemed to have filled up very fast despite the fact that I don't really change that much in incremental backups. Then I looked at the "Properties" of the folder. 387GB in the folder, Size on disk: 574GB!!!
Looking at individual incremental backups I see sizes (Size of file/Size on disk) of 11.0/16.1 , 4.84/8.12, 5.00/8.12 , 2.63/4.12, 8.46/16.1 , 7.72/8.12 , 1.71/2.12 ....etc.
Clearly Backerupper is allocating *LOTS* of extra space in most cases (the 1.71/2.12 case isn't too bad, but it is an anomaly).
1. Why are these so big?
2. How can I change the backup process so that they aren't??
I should note that these were made with the free version. I now have the paid version if that makes a difference for the answers.