How do I authorize older iTunes content that were purchased on an old Apple ID on a newer device?
I have an old iMac and I have my iTunes content on an external drive because the internal HD was not big enough to store it all. I had been using the iMac for basically my media hub. Thru Home Sharing I'm able to access my iTunes content stored on the external drive and ran thru the iMac to all my other devices.
However, the iMac is starting to really show its age and is really slowing down. Recently I bought a used MacBook Air that's a bit newer than the iMac, and I've come to the conclusion I may need to start using it as my media hub, and I thought I did everything I needed to to plug that external drive in and use my iTunes content on the MacBook Air.
I am able to use most of my iTunes content using the MacBook Air, BUT I have a few purchased TV episodes (and I imagine this is true for some songs and movie, but I haven't tried to play them) I bought using an old Apple ID I haven't used in years. When I try to watch any of those episodes either under Home Share on my Apple TV or directly on the MacBook, it tells me I need to authorize the purchase on the MacBook Air. The prompt appears with an old email address in the ID field. I don't remember the password, but when I try to find it with Forgot Password?, it tells me that Apple ID is not valid.
Now when I plug the external drive back into the iMac, and then try to watch that content locally or on another device using HS, it works fine, including the older content. Apparently my iMac has the authorization info for those media files stored somewhere.
Can I copy that information to the MacBook Air so it will recognize those older files as authorized?
Or is there some other way for the MacBook Air to be able to identify those files at authorized so I can play them?
I really don't want to have to repurchase that content. I don't even know if this will affect any of my older music, but I know I bought a few hundred songs using that old Apple ID.
MacBook Air, macOS Sierra (10.12.5), mid 2011