Oppenheimer and the resurgence of Blu-ray and DVDs: How to stop your films and music from disappearing::In an era where many films and albums are stored in the cloud, “streaming anxiety” is making people buy more DVDs, records – and even cassette tapes.

  • wagoner
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    910 months ago

    Do Blu rays require to phone home periodically to validate drm over the Internet? Genuine question., as I have read here that right to play them can be revoked.

    • @[email protected]
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      1510 months ago

      They do not require any online connection. AACS has some ability to revoke media player keys, but it does so by encrypting future releases in such a way that the revoked player can not decrypt them (how this works technically is a bit complicated).

      So if they decide to revoke your player, it can still play every Blu-ray disc manufactured before the revokation went into effect.

      • @[email protected]
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        110 months ago

        So yes a temporary internet connection is required. In order to download the updated keys.

        • @[email protected]
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          310 months ago

          No, there are no updated keys that need to be downloaded. It’s kind of like, they just stop including the key matching the revoked device on future Blu-ray releases. All other devices are completely unaffected by this, because their key is still on the discs. So they don’t need to change or update anything.