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.
Perhaps Also of Interest...
downloaded 5m 0s ago
Displays files in iTunes Media folder not in iTunes track library
downloaded 6m 48s ago
Append user-entered text to beginning or ending of selected tag of each selected track
downloaded 11m 10s ago
Capitalize the first letter of each word in selected track names
downloaded 44m 27s ago
Add or subtract a user-entered number from each selected track's Plays
downloaded 44m 47s ago
Correct song titles listed as "Artist - Song Name"
downloaded 45m 32s ago
Copy Artist to Album Artist of selected tracks