This script converts the files of the selected tracks in iTunes using an encoder of your choice on-the-fly (restoring your Preferences-set encoder afterwards). The newly converted files are then moved to a new location of your choice, and their tracks removed from iTunes.
OS X 10.6.8 or better.
Batch merge and/or delete playlists
Export files of tracks in two or more playlists to single folder
Edit a selection of iTunes tracks' tags "old-school"
Re-associate batch of dead tracks with files from selected folder
Play through each track in a playlist at your set interval
Manage shared tracks over a network