this post was submitted on 07 Mar 2025
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What is this thing?

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The disc is otherwise printed like a "normal" Bluray, but there is this metallic quadruple ring on top. The image is from the "proof" of a scene release, so it might have something to do with being an early release.

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[–] Treczoks@lemmy.world 14 points 2 weeks ago

RFID type circuit. Would need to calculate the antennas length to find the operation frequency. The barbell shaped thing at the top is just a bridge, the thing on the right is the circuit.

[–] flamingo_pinyata@sopuli.xyz 11 points 2 weeks ago (2 children)

It looks like an NFC antenna. But I can't explain why would one be on a disc.
Does it provide some additional data to a player? Or helps the publisher track it somehow?

[–] Glaedr304@lemmy.world 3 points 2 weeks ago

My library does this for checkouts, and to make sure you arnt taking an un-checked out movie

[–] varyingExpertise@feddit.org 1 points 2 weeks ago

Unfortunately all I have is this image and an ISO of the disc 🤷

[–] the_dopamine_fiend@lemmy.world 11 points 2 weeks ago (1 children)

Some kind of anti-removal or tracking measure, except applied directly to the disc instead of the sleeve or case?

[–] whaleross@lemmy.world 7 points 2 weeks ago (1 children)

It could be an alarm badge like in stores but to set off alarms if the disc passes the doors of the movie studio screening facilities.

[–] varyingExpertise@feddit.org 3 points 2 weeks ago (1 children)

That sounds plausible. Kudos to the supplier then.

[–] Mongostein@lemmy.ca 7 points 2 weeks ago (1 children)

It’s an anti-theft device. All the DVDs and games I get from the library have them.

[–] flubba86@lemmy.world 3 points 2 weeks ago* (last edited 2 weeks ago)

This is correct. All DVDs I borrow from our local library have these.

[–] whaleross@lemmy.world 6 points 2 weeks ago

Weird. It looks almost like an antenna. I'd assume it is identification for a screener but it looks a bit over engineered as such. Could it be some sort of self destruction to prevent playing more than once when the laser sweeps over some certain parts?