I would like to have an application for cataloging all of my files that extend in many external disks, hard disks, dvds, usb flash disks etc. And with minimum effort from me, almost automated. I want to be able to see a 'tree' with all the names of the files I have in any disk, even if I do not have it attached to my mac at present time. Just the filename, and the pathway. Like a cartography of all my files. Is there any application to do it?