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Shadow ,
@Shadow@lemmy.ca avatar

My understanding is the media and projectors are heavily tied together with strict DRM. This is why you see cams with direct audio hookups, but not direct video rips

montar OP ,

afaik audio hookups are recording of radio broadcasts for impaired not unauthorised rips of media used in cinema or recordings made using some tricks with wires and clamps.

YourPrivatHater ,

No, the file size is in the terabytes (if not Petabytes) it has super heavy DRM (the cinemas have to pay upfront for a number of showings usually and when they are done the movie is locked) and the file type is a problem as well.

catloaf ,

You can do anything with unsupervised physical access. The signal has to be decrypted at some point: en.wikipedia.org/wiki/Analog_hole

Darkassassin07 ,
@Darkassassin07@lemmy.ca avatar

Last time I looked at the topic (several years ago in a now deleted reddit post); someone had posted info on the projector system.

The media is delivered on a battery backed up rack-mount pc with proprietary connectors and a dozen anti-tamper switches in the case. If it detects meddling; it wipes itself. You’re not likely to grab a copy from there.

As the other commenter mentioned; the projector and media are heavily protected with DRM, encrypting the stream all the way up to the projector itself. You can pull an audio feed off the sound board; but you’re stuck with a camera for video.

montar OP ,

Now i wonder what it does when battery dies, whether it wipes itself or not. And where it stores it’s keys, in TPM or in RAM or where.

kugmo ,
@kugmo@sh.itjust.works avatar

The movie at a cinema isn’t a regular mp4 file, it’s a massive 100-300gb proprietary file that needs a valid license key to even be played back during a specific time period. Good luck decrypting the file or getting the company that issues the keys to the cinemas to give you a key because you’re not getting it to play early. Iirc somehow the Korean rip of the Sonic the Hedgehog movie was leaked early and something similar happened with the My Little Pony movie, but those fan bases are incredibly autistic and will find a way.

montar OP ,

Yeah, there’s no need to pirate at the cinema when you can pirate at the studio. Anyway how in my Lord Satan they made that file that huge, it’s 12K resolution or what?

cmnybo ,

It’s either 2K or 4K video. The bitrate needs to be high because any compression artifacts would be very obvious on a huge screen.

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