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> Some drives need to have their firmware flashed in order to enable ripping of UHD discs I love their summary of what the patched firmware does: 'A LibreDriv

> Some drives need to have their firmware flashed in order to enable ripping of UHD discs I love their summary of what the patched firmware does: 'A LibreDrive is a mode of operation of an optical disc drive (DVD, Blu-ray or UHD) when the data on the disc are accessed directly, without any restrictions or transformations enforced by drive firmware. A LibreDrive would never refuse to read the data from the disc or declare itself “revoked”. (...) Change the optical drive embedded software in a way that the drive becomes a “primitive” device - one that just positions a laser, reads and decodes the data. Make a drive free from “policing” functionality, a drive that just passes all data from the disc to the user.' - from What is LibreDrive? at https://forum.makemkv.com/forum/viewtopic.php?f=19&t=18856 https://forum.makemkv.com/forum/viewtopic.php?f=19&t=18856

antihero 5y ago
How easy would it be to use libredrive, dd and ffmpeg to rip?
- flotzam 5y ago
  Probably pretty hard. It's not a transparent patch to the drive's normal read routines but a parallel low-level API. Then they wrap that in their own high-level userspace API libdriveio (which you'd have to patch dd to use). And once you've pried the data out of the drive's hands you still have to decrypt it. https://forum.makemkv.com/forum/viewtopic.php?f=19&p=96988 https://forum.makemkv.com/forum/viewtopic.php?f=19&p=96988 https://forum.makemkv.com/forum/viewtopic.php?f=19&t=24312 https://forum.makemkv.com/forum/viewtopic.php?f=19&t=24312
- edude03 5y ago
  Very easy but my understanding is you’d end up with an unplayable disc still because you need to perform decryption to get a file ffmpeg can play. That said makemkv does work on ISOs of discs made with a libredrive
- snnn 5y ago
  I believe any DVD drive made in recent years won't support it. Some drives had bugs in their old firmware so that the drives can be used with makemkv, but it doesn't mean it is usual. They can fix the bugs. They can stop making problematic hardware. Even if you can find such a hardware, it might be more expensive than your CPU. Normally people won't invest much on it. And, like what SGX is providing, if the film industry really want to stop pirating, they can. Then makemkv will be a history.
  - Qub3d 5y ago
    > if the film industry really want to stop pirating, they can. I doubt that, if for nothing else the Analog Hole[0]. At some point in the chain, the video data has to be turned into usable information for a display panel and speakers. They keep adding steps to the chain, moving the final step closer and closer to the end, but it is still possible to bypass. In the ultimate case, you could probe the display board directly and convert the raw panel voltages, but in practice there are many earlier opportunities. [0]: https://en.wikipedia.org/wiki/Analog_hole https://en.wikipedia.org/wiki/Analog_hole
bitwize 5y ago
This probably counts as "circumventing a technological measure that effectively controls access to a copyrighted work" under the DMCA and is thus illegal.
- stjohnswarts 5y ago
  some things are worth it.
- burkaman 5y ago
  Morally and ethically there's no issue though, and the risk of prosecution seems incredibly low if you're just ripping your own discs for private use, so I don't think this really matters.
  - bitwize 5y ago
    Trafficking in circumvention devices is a crime, regardless of what you intend to do with them.
    - fisf 5y ago
      In many countries around the globe this is absolutely not a crime, copying content that you own is perfectly legal and not even a grey area.
      - bitwize 5y ago
        True in many parts of the world. U.S. copyright law makes no exception for copying content you own, though I do agree it may be hard for media companies to prosecute so you'll probably get away with it. The Betamax Supreme Court case was won -- 5-4 -- because the court found a single, very narrow, noninfringing use for a VCR: recording a television program that will air only once and never again after that single airing, and you cannot be around to view said television program at its scheduled time, and you intend to destroy the recording after viewing it once. The ruling does NOT cover recording off the TV willy-nilly, or copying things you own; there is a dicta in Justice Blackmun's dissent stating these things to be explicitly illegal. But I'm not talking about doing the copying itself. I'm talking about circumventing DRM which is a separate offense from copyright infringement. That is illegal in the USA, with certain specific, narrow exceptions, whether you use such circumvention to infringe copyright or not. Trafficking in circumvention devices, including publishing or downloading firmware that disables access protection measures, is illegal full stop. (Remember DeCSS? Yeah, hosting that is still a federal crime, irrespective of what you or your audience intends to do with it. The irony is, that means the Feds have every right to take Eric S. Raymond's guns away and bar him from owning a gun for life: http://www.catb.org/esr/netfreedom/ http://www.catb.org/esr/netfreedom/)

antihero 5y ago

How easy would it be to use libredrive, dd and ffmpeg to rip?

flotzam 5y ago
Probably pretty hard. It's not a transparent patch to the drive's normal read routines but a parallel low-level API. Then they wrap that in their own high-level userspace API libdriveio (which you'd have to patch dd to use). And once you've pried the data out of the drive's hands you still have to decrypt it. https://forum.makemkv.com/forum/viewtopic.php?f=19&p=96988 https://forum.makemkv.com/forum/viewtopic.php?f=19&p=96988 https://forum.makemkv.com/forum/viewtopic.php?f=19&t=24312 https://forum.makemkv.com/forum/viewtopic.php?f=19&t=24312
edude03 5y ago
Very easy but my understanding is you’d end up with an unplayable disc still because you need to perform decryption to get a file ffmpeg can play. That said makemkv does work on ISOs of discs made with a libredrive
snnn 5y ago
I believe any DVD drive made in recent years won't support it. Some drives had bugs in their old firmware so that the drives can be used with makemkv, but it doesn't mean it is usual. They can fix the bugs. They can stop making problematic hardware. Even if you can find such a hardware, it might be more expensive than your CPU. Normally people won't invest much on it. And, like what SGX is providing, if the film industry really want to stop pirating, they can. Then makemkv will be a history.
- Qub3d 5y ago
  > if the film industry really want to stop pirating, they can. I doubt that, if for nothing else the Analog Hole[0]. At some point in the chain, the video data has to be turned into usable information for a display panel and speakers. They keep adding steps to the chain, moving the final step closer and closer to the end, but it is still possible to bypass. In the ultimate case, you could probe the display board directly and convert the raw panel voltages, but in practice there are many earlier opportunities. [0]: https://en.wikipedia.org/wiki/Analog_hole https://en.wikipedia.org/wiki/Analog_hole

bitwize 5y ago

This probably counts as "circumventing a technological measure that effectively controls access to a copyrighted work" under the DMCA and is thus illegal.

stjohnswarts 5y ago
some things are worth it.
burkaman 5y ago
Morally and ethically there's no issue though, and the risk of prosecution seems incredibly low if you're just ripping your own discs for private use, so I don't think this really matters.
- bitwize 5y ago
  Trafficking in circumvention devices is a crime, regardless of what you intend to do with them.
  - fisf 5y ago
    In many countries around the globe this is absolutely not a crime, copying content that you own is perfectly legal and not even a grey area.
    - bitwize 5y ago
      True in many parts of the world. U.S. copyright law makes no exception for copying content you own, though I do agree it may be hard for media companies to prosecute so you'll probably get away with it. The Betamax Supreme Court case was won -- 5-4 -- because the court found a single, very narrow, noninfringing use for a VCR: recording a television program that will air only once and never again after that single airing, and you cannot be around to view said television program at its scheduled time, and you intend to destroy the recording after viewing it once. The ruling does NOT cover recording off the TV willy-nilly, or copying things you own; there is a dicta in Justice Blackmun's dissent stating these things to be explicitly illegal. But I'm not talking about doing the copying itself. I'm talking about circumventing DRM which is a separate offense from copyright infringement. That is illegal in the USA, with certain specific, narrow exceptions, whether you use such circumvention to infringe copyright or not. Trafficking in circumvention devices, including publishing or downloading firmware that disables access protection measures, is illegal full stop. (Remember DeCSS? Yeah, hosting that is still a federal crime, irrespective of what you or your audience intends to do with it. The irony is, that means the Feds have every right to take Eric S. Raymond's guns away and bar him from owning a gun for life: http://www.catb.org/esr/netfreedom/ http://www.catb.org/esr/netfreedom/)