This script will change the extension/file type of the files of the selected AAC tracks to M4B which makes them natively bookmarkable (that is, the track will resume playing wherever you left off the last time you played it). Deletes and re-adds each file so its track will appear in the Audiobooks/Books library. Ratings, play count, last played date, skip count, and skipped date are preserved.
Delete empty playlists
Remove iTunes tracks disassociated from files
Display, create text file listing info of dead tracks
Applet compels you to rate unrated current track
Change file type to make selected AACs bookmarkable
Applet assists with swapping, copying, appending data between track tags