misinformation that people ever owned that media

Obviously you don’t own the rights to a movie you buy on Blu Ray, but you own a copy of it. And you are free to do with it whatever you want. No one can take your Blue Ray away because you are the sole owner of that copy of the movie. When buying movies online, this is not the case. Practically, you don’t own anything as it can be taken away from you at any time.