[phlo]

> [Piracy:] When I download a movie this way, I truly own it.

When you download a pirated copy, it's more likely that you _possess_ it, rather than _owning_ it. You are in control of the bits and bytes, they will not just disappear; but since your copy is unlicensed and illicit, the copyright holder could take legal steps to make you delete your copy (and pay for your infringement on their copyright).

> Same as I own a DVD disk.

That's different. You own the physical disc, and the right to re-sell or potentially lend out that physical disc. (However, you can't take the data from that disc, and stream it to a public audience on the internet.)

> [...] rewatch some episodes just plugging the disk via USB

Depends on your jurisdiction, but in many places it is legal for you to create a backup of a physical disc that you own, and make personal use of that backup. In some places you are allowed to share your backup copy with friends and family (on a non-commercial basis, of course). It gets nuanced.

[developer93]

Ripping is pretty much undetectable though unless they decide to torrent it for others. So in practice they own it. As to the 2nd point, it's not really 1:1, a more accurate equivalent would be a netflix dvd rather than a bought one.