This is what I’ve been saying. We don’t even own digital products, all it takes is a server to be taken down or an account to be lost and all you bought is taken away. Pirating also can’t be stealing because we aren’t taking something away from someone else, other people are not deprived of the chance to have this just because we downloaded it.
I assume you are referring to a physical copy of the Sega CD. As long as you still own a Sega CD you can play physical copies of games. Recently PlayStation closed down their online service for PS3 so you cannot access any digital games you may own even if you still have a PS3.