This is very odd to me. I have two external back ups. when I drag and drop 1 to the other to update the back up, the sizes of the HD dont match when I check GET INFO. This even happens when I drag and drop ALL of the files. For instance. I have two brand new 1TB HDs which I use for a project I'm editing in FCP. When I drag and drop all 133GB from HD1 to HD2, and an hour later upon completion it says HD2 has 125GB, but I got no errors... Also, all the files seem to be there! When I check the SIZE in the LIST view in the finder, all my folders match. Yet at the bottom my total available is also different. what gives?