If I weren't ignoring Mini-D, I'd notice he just compared digital media to solid corporeal objects (a vase).
You buy a CD. What are you getting?
A flat disc? No. You're getting digital 1s an 0s on the disc. The disc is just how they're stored. It's the box package.
The very nature of digital media is hard to define. It's not a matter of "one copy" -- because it takes no effort, no additional material to make a copy. You're not purchasing a DVD, you're not purchasing a CD-ROM. These things by themselves are glorified coasters for your frosty beverage.
You're purchasing the right to watch and listen to the material on them. If the coaster gets scratched, you still have that media, which you paid for the right to listen to.
The fact that it doesn't exist except in a series of 1s and 0s means that conventional ownership and copyright laws don't apply, and many people have acknowledged this fact.
How can you own the rights to a series of 1s and 0s? You can own the rights to a song, to the distribution of CDs that have that song on them, but you can't own the rights of digital bits that don't really exist in the physical world. All they are, is a collection of electrons.
You can't own these. You can't copyright these.
Oh, and P.S. if media companies wanted to stop piracy they'd stop sending fresh just-printed reels of movies to Hong Kong. They'd cut off the piracy hubs of SE Asia that produce 99.99999% of all pirated or bootlegged material. Piracy is cut in half almost overnight. Why don't they? Because they're greedy SOBs and the few million (drop in the bucket) they get from sending the films over there in the first place is worth the hundreds of millions loss from piracy, to their math.