This script will change the file type of the selected AAC tracks--which you have previously made bookmarkable yourself with the script Make Bookmarkable--to "M4A" and file extensions to ".m4a" making them UN-bookmarkable. When used with iTunes 7 or later, each track is deleted and re-added so that it will be removed from the Audiobooks Library. Ratings, play count, last played date, skip count, and skipped date are preserved.
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Change file type to make selected AACs bookmarkable
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Remove iTunes tracks disassociated from files
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Delete characters from the beginning or ending of selected tracks' name, artist, album, comments, composer, or show tags
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Title Cap various track tags, featuring editable exceptions lists
downloaded 1h 10m 3s ago
Use tag info from selected track to search Amazon Books for cover art