iDupe works better than all the others. (I found two others) A few weeks ago I accidentally trashed and deleted my beloved 50-gig music library (don't laugh) and in the course of recovering songs with a rescue utilty and from every possible disk I could find, I ended up multiple copies of the same songs, many of which were trunciated or corrupted. Show Duplicate Songs in iTunes revealed over 6000 duplicate titles. Arrrgh! iDupes works in concert with iTunes to scan selected songs in iTunes and further evaluate them. Here's what I did:

• 1. In iTunes library view with Browser enabled; SHOW DUPLICATE SONGS and then sort by Artist. Cross fingers.
• 2. Select the range (a few hundred at most, like A's thru C's for instance)
• 3. Run iDupes scan which will evaluate the selecteed songs and show a report of what it found.
• 4. Click iDupes "Mark Results in iTunes" button
• 5. Click the final "Ditto" button which removes unchecked in current selection from playlist, removes them from the library playlist, and then moves them to the trash.

This routine took me about 4 hours to clear the 6400 duplicate tunes. I couldn't bear to imagine how long it would have taken without iDupes. Minus: iDupes would hang on errors in corrupted songs. Allow it to time out and use the error report to identify which songs you need to delete manually. Didn't always identify the version I would have preferred to save, but made the best choice 9 out of 10 times. PLUS: it's easy to preview the songs iDupes is about to delete and override choices with your own. Only $8! Thanks dude. You've done me a big favor.