Removing dead tracks in iTunes automatically
Doug’s “Super Remove Dead Track v2.1″ works like a charm: http://dougscripts.com/itunes/scripts/ss.php?sp=removedeadsuper
Installation takes about 20 seconds. Note that if your music collection is large (mine clocked in at 120 GB…), and you have a lot of dead links (I had around 10-15 GB), it could take up to an hour.