Not sure if this is the best place for this question. I have a 500GB SSD 5K iMac and I copy lots of videos into iTunes to synch to my kids iPads, my iphone, etc. I guess I do not really need to store the media on the iMac, I keep all the media on a separate external drive backed up. I am starting to run out of space on the iMac so I'm considering deleting the media from iTunes. 1. Is there a way to delete the media from iTunes without it removing the media from the iPads, iPhones when the re-synch? 2. I'm planning to format one of the devices soon, is there a way to just copy media just to the newly formatted iPad without having to copy it back to the Mac? Thanks.