Hi, I am having a hard time accounting for all the memory being used on my hard drive. I am suspicious that i have duplicate music files, but two different duplicate finding pieces of software came up negative. My "itunes music" folder says it had 39.2 GB but my itunes library only have 18.2 GB of music. How can i reconcile what is in the folder but not in itunes? Further, if there is just more music in the folder and not duplicates, as I suspect, how can I sync the folder to what's in itunes? (I could really use the extra 21 gigs.) Thanks so much!!!