I think I already have them (too busy to index vivthomas cds).
If you start collecting pictures (or movies that have csv) on usenet or elsewhere, you should get one of those softwares :
The!Checker
Hunter
Scansort is command line driven (use google to find linux package)
Each of them have pros and cons (checker look easier, hunter is faster when sorting your downloads, ...).
They will sort files you have downloaded into directories and subdirectories automatically, create an output of your missing files for a collection (that you can post on usenet as a request for filling)... saving you a LOTS of time.