this post was submitted on 16 May 2026
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Do you need special firmwares to run a dd command on Linux?
I'd imagine that could make a backup of the whole disk, but it can't decrypt it
I just flashed the firmware and used makemkv (when I was using windows...) I'm sure there's a better FOSS way but I haven't explored it since moving to linux
makemkv on linux for DVDs. abcde for CDs. dd of=game.iso for games.
I used to have pretty good luck with mplayer -dumpstream for DVDs, but its success rate started dropping a few years ago and I switched to makemkv.
No magic firmware required.
You do need magic firmware for BluRays.
Isn't that only for UHD Blu-ray
Actually, yeah. Apparently the kind of lockout the replacement firmware works around has been defined for BD from the beginning but has only really been enforced for UHD BD.
Untrue. You can rip standard Blu-ray movies using MakeMKV with factory firmware. You do need special firmware to rip UHD Blu-rays unless you have a certain drive with older unpatched firmware. Also, Blu-ray data discs work as you would hope.
Must be a new thing. My 20-year-old BR drive has never complained.
Most newer drives won't give you the kind of direct access you need for an accurate copy. Some disc areas necessary for dealing with copy protection are inaccessible except by specially blessed playback software.
Some older drives ignore this restriction but newer ones, especially all 4K-capable drives, don't.
There's an alternative firmware called LibreDrive that enables a low-level access mode where an application has direct control over the laser assembly. That plus ripping software aware of this mode (MakeMKV) will get the data off the disc. Add known decryption keys and you can get at the raw video files.
And as usual, only the law-abiding customers get fucked over. Professional pirates just get a proper disc drive.
DRM is designed to prevent that, as I found out when trying to copy a CD that used securom