[gentoo-user] Re: Transcoding movie DVD to MPEG4?

[Grant Edwards]

On 2006-12-03, Stroller <stroller@××××××××××××××××××.uk> wrote:

> I've never used K3B myself, but its site is not clear whether it
> handles the DeCSS part of the DVD rip.

I've never used K3B either.  If I want to make an exact
(decrypted, dereionalize) copy, I just do this:

$ dvdbackup -M -i /dev/sr0 -o dvds
<remove original DVD, replace with blank double-layer>
$ growisofs -dvd-compat -Z /dev/sr0 -dvd-video dvds/<TITLENAME>

> CSS is the system used to region-restrict DVDs, and AFAICT it
> works by encrypting the files on the disk against a key stored
> in a special part of the DVD's header. This "header" part of
> the DVD is not writable by normal DVD-burners (I have heard
> that "authoring" DVD- burners which support it cost several
> thousand pounds), so a "bitwise" copy of a DVD cannot be
> decrypted (because the key is missing).
>
> As I understand it, in order to copy DVD movies one must first
> make a copy of the DVD's files - with the region-encoding
> removed - onto hard-disk, then burn this as a new DVD
> "compilation". The result is an R0 disk which should play fine
> in any standard player.

Exactly.  The dvdbackup/growisofs method works fine for making
same-size copies.

-- 
Grant Edwards                   grante             Yow!  Then, it's off to
                                  at               RED CHINA!!
                               visi.com            

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