You may find that you've got some duplicate tracks in your iTunes library (especially if you recently moved things to an external drive). You could fix things with iDupe by Wooden Brain (we looked at iDupe a while ago), or the new version of Dupin by Doug's AppleScripts. Dupin lets you find and eliminate duplicate tracks easily. Changes in version 1.0.3 include:
- Filter processing speed increased;
- A "Clear" sub-menu has been added to the "Looking for..." search field
- The requisite "...tweaks and bug fixes."