TuneTech™ for iPod® (formerly Pod Genius) is the only comprehensive software utility geared specifically toward iPod users. Recover lost or damaged music, repair corrupted data structures, backup your iPod to an exact copy, permanently delete unwanted files, or optimize the file layout of your music. You've invested a lot into your iPod and music, with TuneTech™ for iPod®, you can be sure your iPod will faithfully perform and your investment is well-protected.
Download link is for the update, the demo is available
here.
Requirements:
-OS X 10.3 and up.
-TuneTech does not support iPod Shuffle.
Universal Binary
Author's Site
Screenshot