Ah, this is a tool I've been looking for, but there's one feature that would be awesome.
Imagine I have a bluray that is damaged (scratched), I can ddrescue as much of it as I can (i.e. copies it sector by sector and keeps a map of what it couldn't read), I can then ddrescue a different disc (even if also damaged) to fill in the missing sectors. I can generate an encrypted iso this way.
Now, since I have the disk, your tool should be able to generate the appropriate decryption keys via the drive but use them to decrypt the complete iso. Would help for discs whose VUK isn't in the keydb.
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