YouTube one time actually flagged an audio artifact (a clip sound) from a VHS tape I uploaded as 3rd party content, that was ridiculous!
Google needs radically overhaul their content ID system, because it is basically rogue and out of control . I am against pirated videos or people uploading music without permission. However, You tube's copyright content ID system goes beyond that, it punishes innocent YouTube uploaders even for accidentally filming faint copyrighted music, which is not fair at all. I rarely upload YouTube videos now in fear that I will have some strike or something because I unwittingly had music or something in it.
