Question 1: Duplicates in Playlist
In the course of building playlists I always end up with duplicates on the playlists, thus making them kind of useless (unless you use duplicates as a manual weighting option in the playlist). Does anyone know of a windows way to remove duplicates from a playlist (Maybe some smartplaylist option I'm missing?)

Question 2: Duplicates in Library
Does anyone know of any automated way to report duplicates based on artist/title in the library? Maybe a way to make a playlist of them, or something? I've got a 500+CD library that had data loss and then was restored and now I've got duplicates all over the place that are becoming very tiresome to remove manually.