Stamps, change the name of the photo by date

It's a very simple program that automatically rename digital photos albums according to date. If that is a photo (by name foto001.JPG) was taken December 1, 2010, the photo will be called 2010-12-01@foto001.JPG (or something). This makes it much easier, then find and reorder.
It is not one of those essential programs, but is useful for those who make a lot of photos albums and then having difficulty where to replace.

Stamps