As in title, i’m just wondering whether it is possible to rip movie from cinema if one has got unsupervised access to cinema’s hardware. Maybe someone did that? I’m not talking about caming, i’m talking about making a digital copy of premiere material.
- Shadow ( @Shadow@lemmy.ca ) English45•1 month ago
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
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.
- Darkassassin07 ( @Darkassassin07@lemmy.ca ) English35•1 month ago
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.
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.
- Darkassassin07 ( @Darkassassin07@lemmy.ca ) English9•1 month ago
Pretty sure the media itself is stored in ram, or similar volatile memory; so it wipes automatically on powerloss.
Friends in other comments suggested that the file is 100-300gb size, it’s quite a lot of RAM if you asked me, but not much for a harddrive. If i were to design this machnie would store the movie heavily encrypted on a harddisk and store keys in RAM. Sb ealier mentioned you need special keys from special compamy to decrypt it so it would be doubly encrypted, one key stored in RAM and another inputed by technican. Ofc if i were to design this i would try to make it piratable by introducing some “accidential” vuln.
- Norah - She/They ( @princessnorah@lemmy.blahaj.zone ) English2•1 month ago
Too many engineers involved, there wouldn’t be a single point of failure like that by design.
- Mubelotix ( @Mubelotix@jlai.lu ) English28•1 month ago
I think they hide information in the video to be able to find out where a leak came from
- stom ( @stom@lemmy.dbzer0.com ) English12•1 month ago
Ratatouille famously did this, with actual scene elements rather than digital watermarking.
There’s a scene with a poster in the background. Every copy of the movie had different digits on the poster, I think with a unique ID for each cinema they were sent to. When a leak came out they could check the ID and know exactly which avenue it was leaked from.
- foldor ( @foldor@lemmy.ca ) English3•1 month ago
You say Ratatouille did this famously. But I can’t find any references. Do you have some?
- spiderman ( @spiderman@ani.social ) English10•1 month ago
Yeah they got unique water mark these days.
Sounds reasonable, but they won’t be able to take it out, they would only be able to not send new movies there.
- Mubelotix ( @Mubelotix@jlai.lu ) English6•1 month ago
They also will be able to sue the enterprise behind the cinema
If it’s not a 3rd world country ofc.
- catloaf ( @catloaf@lemm.ee ) English19•1 month ago
You can do anything with unsupervised physical access. The signal has to be decrypted at some point: https://en.wikipedia.org/wiki/Analog_hole
- YourPrivatHater ( @YourPrivatHater@ani.social ) English13•1 month ago
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.
- Fonzie! ( @lord_ryvan@ttrpg.network ) English9•1 month ago
petabytes
Lol.
- YourPrivatHater ( @YourPrivatHater@ani.social ) English11•1 month ago
That wasn’t a joke
Over 500 Gigabyte for one movie. The size obviously depends on the length but also on the amount of visual stuff and sound things they might add. Also quality requested. 3D also increases the size heavily.
- Emerald ( @Emerald@lemmy.dbzer0.com ) English16•1 month ago
Over 500 Gigabyte
Which is 0.0005 petabytes. Nowhere near a PB lmao
- YourPrivatHater ( @YourPrivatHater@ani.social ) English4•1 month ago
Wasn’t talking about a single movie, thought the guy wanted to rip all the currently releasing movies.
A single movie is usually around the 500gb to 1000gb as said, depending on the specifications.
- NateSwift ( @NateSwift@lemmy.dbzer0.com ) English6•1 month ago
Right but 517 GB is ~0.05% of a petabyte. Nobody is saying 517 GB is small, but it’s a far cry from petabyte(s) of storage
- YourPrivatHater ( @YourPrivatHater@ani.social ) English2•1 month ago
Wasn’t talking about a single movie, thought the guy wanted to rip all the currently releasing movies.
A single movie is usually around the 500gb to 1000gb as said, depending on the specifications.
- sqgl ( @sqgl@beehaw.org ) English4•1 month ago
A Petabyte would be a thousand movies. No cinema has a thousand movies on its program.
- YourPrivatHater ( @YourPrivatHater@ani.social ) English2•1 month ago
Depends strongly on the cinema, many have the movies around for relatively long and as said, the size varies heavily.
- NateSwift ( @NateSwift@lemmy.dbzer0.com ) English2•1 month ago
Yeah, that’s be a high bar for storage lmao
- YourPrivatHater ( @YourPrivatHater@ani.social ) English2•1 month ago
Yeah basically impossible to walk away with unnoticed, and internet usage for this amount of data would be very visible. The movies usually arrive in boxes by a special service that has vans like money transports…
- DaGeek247 ( @DaGeek247@fedia.io ) 4•1 month ago
Nope. SD cards can do terabytes now. Walking away with it is probably the easiest part of the whole heist plan.
Getting around the obscure hardware and software DRM schemes, moving that much data quick enough that you don’t have to make two trips, getting the knowledge required to do all that… I figure those would probably be harder.
- Banzai51 ( @Banzai51@midwest.social ) English12•1 month ago
Going that way is a great way to be prosecuted to the fullest extent of the law. Messing with their equipment is going not going to end well.
- Revan343 ( @Revan343@lemmy.ca ) English6•1 month ago
Not nowadays with the DRM they use. Back in the actual-film days it was doable, and called a telecine
- femtech ( @femtech@midwest.social ) English1•1 month ago
If they had reals still, sure. But I don’t think cracking the hardware is going to work.
- Flax ( @Flax_vert@feddit.uk ) English1•1 month ago
Don’t they have special projectors sent from the companies these days?