About Dupin Very quickly find all sets of duplicate iTunes tracks based on your choice of criteria: – Select the “Keeper” tracks from among a number of duplicates automatically using a variety of versatile filtering options – Consolidate the play, skip, and ratings information from all tracks in a Dupe Group to the single “Keeper” track – Re-populate iTunes playlists replacing – “non-Keeper” tracks with – “Keeper” tracks – Purge duplicate tracks from iTunes and send files to the Trash – Manage intentionally duplicated tracks – Copy tracks to new iTunes playlists