If you've got song doubles in your music collection, use iTunes' "Show duplicate songs" view to weed them out. Using iTunes version 4.7.1 (free for Mac or Windows, iPod or not), in the Edit menu ...

I'm sure I fucked something up when I imported some mp3's a few minutes ago. I copied the folders into the music directory because they were on a network folder. Then I added the songs to library ...

Is there no feature in iTunes to import music from a library without creating duplicates of music you already have in both libraries? It's a family setup in a house. Couple PCs, mom and daughter have ...