Uhm, I have the film physically encoded on the discs on my shelve. They CANNOT erase that. No matter what they do, there will always be a way to access the film with the help of tech savvy individuals. There is still a difference.
Er, well, okay. But you won't be able to pop those into your stock Bluray player and play them if they are CRL'd.
Again, I'm comparing this to downloaded licensed content (streamed licensed content can be revoked and there is no way to stop that); if you go with the "tech savvy" out on Bluray, the same "tech savvy" out exists for cracking local FairPlay-protected content.
Edit: And, with Mac Blu-Ray Player, once you've opened a disc once while connected to the internet, it doesn't need the internet to use them anymore. So actually my entire current Blu-Ray collection is permanently unlocked. In the worst case all I'd have to do is unplug the ethernet cable from my computer whenever I want to watch one.
And the only way that would happen is if somehow the Mac Blu-Ray Player were updated to a newer version which disabled the disks, which doesn't make any sense whatsoever… and if it did happen I save the disk images of the older versions which unlocked my discs… so I'd still be able to watch them.
Refer to the AACS specs, or the ~English depiction thereof in
http://www.aacsla.com/specifications/AACS_Spec_Prerecorded_Final_0.953.pdf
Specifically, Chapter 2 "Content Revocation". Every licensed AACS player respects the CRL included on every (mass-produced by a "Licensed Replicator") Bluray disk, and if a disk contains a newer version of the CRL than the most recent one it has encountered, "the Licensed Product shall replace the previously stored CRL data, if any, with the newly read CRL data". Further, upon every play of encrypted or unencrypted (!) content, the
most recent CRL is used to ensure that the content being played is still properly licensed.
That is, the Mac Blu-Ray Player either does not obey the AACS license requirements (in which case it will soon find that its Host Key is revoked and any new disks will cease to play on it) or it is silently keeping track of the most up-to-date CRL entirely without needing to check in via the Internet, and checking each disk with that most-recent CRL every time it plays a disk.
Yes, in theory if you wiped all of MBRP's local storage, installed it again, and only ever played disks older than the one that contained a CRL which revoked the license for an earlier disk, all would be good. Unlike a hardware Bluray player where such a workaround is much more costly and potentially impossible, you at least have a "workaround" with a software player.
Anyway, like I said, I can't see any indication that CRL has ever been used (unlike the Device Revocation List, which quite assuredly has been used to revoke the license of players who failed to follow the AACS spec to the letter), and honestly would be very surprised if it ever were. But, the technical means is there to revoke your license, and the license is indeed an "at the pleasure of the content providers" license.
Long story short: back up your content so you have it locally. On blurays, I'd back up the content because at least in my house shiny plastic disks have a half-life of approximately six months when they are in heavy use (i.e., my "license" to play that disk is much more likely to be revoked by someone setting it down outside its case and it getting scratched to hell and back than by Disney deciding no one should be able to play Lion King ever again). I completely agree that this is a better situation than relying on streaming. Just don't assume that you "own" anything. It can be made
very difficult for you to use.