I have a question. I work for an Architecture Firm and we back up our data and drawing files weekly to a separate hard drive. Then each month we switch our hard drives. When I backup everyones data I go onto their computer and copy their documents and drawings files to a new folder each week and give it a name with the date that I did the backup. By doing this it seems to me that I am saving alot of duplicate information instead of using the same file to "copy" to and just updating the new information. My problem is I don't want to overwrite any information. IS this the best way to back up someones data do you think?