Use iTunes to Find and Remove Duplicate Songs
The larger your music collection, the more likely it is to contain duplicate songs. For instance, I own Billy Joel's Greatest Hits, which includes songs from various other albums that I also own. Consequently, my library contains two instances each of "Piano Man," "My Life," and so on.
Fortunately, iTunes has a secret weapon against duplicate songs:
1. In the Library section, click Music.
2. Click File, Show Duplicates.
3. Presto! You'll see all the songs that have the same name.
To remove a duplicate, just right-click it and choose Delete. Note that doing so merely removes the song from your iTunes library--it doesn't delete it from your hard drive.
Also, before you start deleting songs willy-nilly, make sure they're identical. For example, Sting's "Moon Over Bourbon Street" appears twice in my library, but that's because I have both studio and live versions of the song-and I want to keep both.
If you're not an iTunes user, try MediaMonkey. This shareware classic makes simple work of finding and removing duplicate songs from any music library.
Product mentioned in this article
Apple's iTunes 8 brings some interesting new features to the table, but it's far from a groundbreaking update.