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Any of the newer iTunes no longer requires this script. Open the preferences for the song (usually highlight it and press command+I), select the Options tab, and then check "Remember playback position." The only time you cannot change this is in m4b formats (which is an audiobook format), once you convert a file to m4b it will automatically be selected for you. This is great because now all audiobooks in m4b format are bookmarkable. But you can make most file types Bookmarkable just by using iTunes. Hope that helps.
 
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