I have a very large music collection that I have copied into iTunes (1047 CDs), many of which have small bits of silence at the begining and then end that I would like to remove. Given the very large number of tracks that I am dealing with, I would perfer an automated system that would get rid of them. I found AudioSlicer, but that only works with MP3s, and my collection is in M4A (the default iTunes format). Is there any tool avaliable that will scan any songs I feed it and remove silence at the beginings and ends of songs? Thank you in advance.