@ifixcoinops just a salient point that you have pirates and you have archival communities in just about all disciplines. It doesn’t mean you’ll find what you need easily but it doesn’t mean it doesn’t exist in the digital seed bank like communities that are scattered about.
Your point is also wise no matter what. If you still haven’t digitized certain parts of your media just for a backups sake. Do so. It’s not hard and the medium wears out.