Canadian Gov Withdraws DMCA Bill—Can They Withdraw Ours?

[R'as al Ghul]

Because you don't own the DVD, just the right to use it.

Sometimes, using requires decrypting.
With region-coded DVD's that's almost always the case because you buy an encrypted product anyway.
Imagine you travel to another region and buy a DVD. You'd have the right to use it but you need to decrypt it to actually view it because a) your player doesn't allow another shift of regions or b) you're not using Windows.