So I have a new MBP and I started to pile up about 200gig's of music on it and decided to just get an external to hold it all. So i bought a 750G WD Passport. I then felt it would be best to add my laptop music to my Mac Pro music just so i can have all the same music on both and the most complete Itunes file. So i proceeded to copy all my laptop music onto my Mac Pro and now I want to take the complete music file and save it on my external and when I plug in my external and turn on my laptop it will point to the location on the external drive and show all my music in itunes when my external is attached. So i thought i mapped the drive right but then i decided to import a CD and I found that the laptop is still saving the music files in it's normal location and not on the external like i mapped it to do. So that is problem....I think my explanation might be a little confusing, if so PM me and I can get into further explanation. Thats problem #1....now #2 So i started to notice I have a ton of duplicates and I know you can delete them from your Itunes but they still keep the duplicates in the actual source file for the music. Is their a way to delete the duplicates out of the source files without doing it one by one? Any help would be appreciated!