Is there some sort of standard system for naming music files (so we don't get the same song with more than one different name)? I was just wondering, because as far as I can see there isn't; there seems to be many versions of the same song, some with hyphens in the name, some with the artist in the name, some with the track number. If there are many different names for the same song, doesn't that make it more dificult to download that song (as it wouldn't be downloaded from every source, just the ones with the same name)?

Thanks
Jack