Some surprise while "dd-ing" a video DVD...

[Phillip Susi]

No, the encryption is done at the hardware level.  The drive will fail 
to read the encrypted sectors if it can not decrypt them.

Arne Caspari wrote:
> Phillip Susi wrote:
>> It unlocked the disk, which means it sent the drive a valid key to 
>> decrypt the encrypted blocks.
> 
> Correct me if I am wrong but AFAIK not the disc is encrypted but only 
> the video .VOB files.
> 
> So in my optinion, dd should work :-/
> 
> 
>  /Arne
>