I was just hoping I might get a more in depth explanation on rsync. I have used Mac for a little over a year, but I have used Debian linux for about 5 years. That being said I have only had a couple of occasions where I actually needed rsync. I have read the Man pages, but it's frankly alot to take in when I already have a working script. This is the script I'm currently using: Code: rsync -aE --delete --ignore-existing /Volumes/Data/ /Volumes/Data2 Of course this backs up everything from Volumes/Data/ over to /Volumes/Data2, only copying what is new, and deleting files that have been removed from /Volumes/Data. My main question I is, is there a better combination of switches I should be using? It is only backing up movies/music/pictures. I noticed that my backups tend to have be a little strange as far as permissions/ownerships.