The physical media is whatever is playing the content. The law doesn’t specify the media.

1909, one year after the Supreme Court ruling: “Your honor, I know that the Supreme Court ruled that publishers can’t add a shrink wrap license that prohibits cheap resale of copyrighted work but you see, I delivered the content on llamas where it was printed onto scrolls at the customer’s home so the law doesn’t apply. You wrote the laws thinking about trains and ships transporting books and I use neither.”