Store my iTunes media on external, but the extensions remain on iMac. External crashed I have about 200gbs on it, but have it all on another system. I am getting new external, my ?'s... Say I only want half of that media library on new drive, but the extra extensions are still on the iMac. How to I make it simple and not have to manually delete all the extra/old extensions from iTunes? Do I wipe the library completely and start fresh? Or a better way perhaps to save time? Also, purchased music on iTunes was on the crashed drive, can I retrieve them from iTunes store easy enough? Thanks for any help in advance!