Sorry for bringing this up more than once or twice, but the issue has been going on for about 2 years with no end in site. Others have complained about the same issue - when syncing to a mobile device, i.e., iPhone or iPad, the process sort of stalls at the end and says "Waiting for Items to Copy" for either an inordinately long time (1 or 2 hours) or indefinitely. I have a feeling my problem may be more severe than others because of the size of my music library. The various fixes mentioned here sometimes work, sometimes not. But that's irrelevant. No one should have to deal with this for such a lengthy period. The question... how does one complain? I must have spoken to at least 15 senior advisors (I have apple care for my devices) and every single one has dropped the eight ball. All say they have no documentation that such a problem exists then we take various steps to resolve the issue. I'm on the phone for over an hour sometimes. Then, the advisor basically gives up and has me capture the session to send to engineering. They all give you their phone and email, but after one or two exchanges (if that many), they stop responding. I never hear a word after it goes to engineering. It just ends there. There is no executive office that I know of to complain to. Someone once gave an address of firstname.lastname@example.org. I rec'd no response. I left messages with customer service for someone to call and no one did. I emailed in the support section and got no response. What's next? I will add that, in general, support is good. It's only this one issue I've had this mind boggling problem.