We have an old (running Yosemite) MacBook and just received a new one that we want to transfer all iTunes to. We don't want to use migration since there are items on the old one that we don't want to bring along. The iTunes file is over 500G. What is the best way to transfer that will take the least time? I tried through wifi but that said 3 days and then quit. We have some other manual files (photos, apps) that we will also want to transfer but iTunes is the biggest. Thanks!