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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    91 year 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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      151 year 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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        11 year ago

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

        • @[email protected]
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          31 year 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.