Hello. I am a new user and hoping I am putting this into the correct forum. I have recently been given a large number of books from a calibre library. They are currently sitting on my Mac formatted USB. I am trying to copy them into the Calibre app I have set up on my mac, then I want to transfer the library onto my iPad. Despite tackling this from all angles I can think of, I can't figure out how to get the files from the USB to the mac. Are there any users out there who can help? Thank you in advance