Legitimately playing 4K blu-ray video on a PC without cracking the DRM requires an insane combination of requirements:
- Windows 10 (not 11)
- An Intel processor between gen 7-10 (nothing newer because Intel ditched SGX in 2021)
- Intel integrated graphics (no nvidia/amd)
- Monitor that supports HDCP 2.2 for DRM (some 4k ones don’t)
- An approved optical drive
- Proprietary playback software which costs about $100 USD, separate from the cost of hardware and Windows
- Miscellaneous other requirements for the motherboard features, bios settings, etc.
Meanwhile MakeMKV can rip them on basically any Windows/Linux/Mac system with a compatible BDXL drive.
This argument is even more ridiculous than it seems. During the copyright office hearing for this exemption request (back in April), the people arguing in favor of libraries talked about the measures they have in place. They don’t just let people download a ROM to use in any emulator they please. It’s not even one of those browser-based emulators where you can pull the ROM data out of your browser cache if you know how. It’s a video stream of an emulator running on a server managed by the library, with plenty enough latency to make it very clearly a worse gaming experience.
It’s far easier to find ROMs of these games elsewhere than it is to contact a librarian and ask for access to a protected collection, so there’d be no reason to redistribute the files even if they were offered, which they aren’t.
On top of that, this exemption request was explicitly limited to old games that have been long unavailable on the market in any form, which seems like an insane limitation to put on libraries, places that have always held collections of books both new and old.
All of that is still not enough to sate the US Copyright Office, the ESA, AACS, or DVD CSS. Those three were the organizations that fought against this.