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Is watermarking on movie Blu-rays a thing? (lemmy.world)

submitted 2 months ago* (last edited 2 months ago) by chloridesubsector@lemmy.world to c/piracy@lemm.ee

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Is that (still) a thing? How safe is it to rip Blu-rays for seeding?

Edit: clarification. I mean the invisible kind of watermark used as a unique identifier of the disc and associated file.

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[–] mipadaitu@lemmy.world 8 points 2 months ago (1 children)

They physically print the disks, so each one from a print line is the same. It would be too expensive to dynamically print every single disk uniquely.

Additionally, there would be no way for a printed disk to be tracked to a specific sale. We just don't have that level of granularity in our sales. Best Buy scans the UPC barcode of a disk to sell it to you, they don't track the specific serial number of each disk to know that you bought which one.

[–] AndrewZabar@lemmy.world 2 points 2 months ago

Beyond all that, the ripping process will tend to destroy any reliability of having a manipulated pixel remain exactly the same unless the person uses absolute lossless with no compression.