[itsme]

@Tangodon: I recommend tagging your MP3 files. There are plenty of tools supporting that on any operating system.
My favorite for Windows is http://www.mediamonkey.com
[url=http://www.mediamonkey.com/][/url]
It provides very convenient and flexible ways to create tags from file names and vice versa, multi select and mass renaming.
(And lots of other useful features for maintaining audio collections of any size)