This script will change the file type of the selected AAC tracks to "M4B " and file extension to ".m4b", thus making them bookmarkable. (That is, the track will natively resume playing wherever you left off the last time you played it.) Additionally, when used with iTunes 7 or later, deletes and re-adds each track so it will appear in the Audiobooks Library. Ratings, play count, last played date, skip count, and skipped date are preserved.
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Remove iTunes tracks disassociated from files
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Prefix each selected track's Song Name with the number of its order in the selection.
downloaded 22m 27s ago
Renumber playlist tracks to play order
downloaded 1h 21m 59s ago
Use tag data to formulate new file name for selected tracks' files
downloaded 1h 32m 7s ago
Locates pairs of track entries pointing to the same file
downloaded 1h 40m 54s ago
Exports and then re-imports selected tracks' artwork