I am a big believer in backups. I have a nice backup plan for my data. I have recently been evaluating my strategy which uses both Superduper and arRsync which is a gui for rsync. I have been doing some testing and I have noticed if I copy data to a external disk with Arrsync and then at a later date update it with Superduper, Superduper will rewrite all the data not just the updater files. (I do have super duper set to update). I contacted super duper about this and that say that arrcync in not coping the media data. If I do the test in reverse, rsync just updates the super duper data. So that leaves me wondering, should I not be using arrcync. For backing up only certain directories arrcync is better suited that super duper. Any thoughts?