back up CD method?


I want to make a CD back up of the docs folder and some library items.

Is there a way to make a "stationary"/template either in Toast or OSX that backs up the items in the enclosed folders and keeps updated for those back ups?

IE: I made a Toast 6 file that was all the items I wanted backed up. But nothing that was created after the original Toast file gets backed up, only the items from the creation date of the Toast file.

Boy I hope that makes sense to someone......