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On Mon, Apr 7, 2008 at 2:40 PM, Doug LaRue <[EMAIL PROTECTED]> wrote:
> ** Reply to message from "Lan Barnes" <[EMAIL PROTECTED]> on Mon, 7 Apr 2008
>
>  DVD images are playable by mounting them to a loop device. And it seems 
> using dd
>  would be a real "image" according to this:
>  ( from:
>  
> http://www.sonoracomm.com/index.php?option=com_content&task=view&id=92&Itemid=32
>  )
>
>  DVD (ISO) Images
>
>  You can back up a DVD (even a movie) to your hard drive and restore it easily
>  from the Linux command line.
>
>  Assuming your DVD drive is /dev/hdc, execute the following from the command
>  line:
>
>     dd if=/dev/hdc of=dvd.iso
>
>  Verify that the DVD and the ISO file are exactly the same:
>
>     diff /dev/hdc dvd.iso -r
>
>  Insert a blank DVD of the same type as the original (-R, +R, DVD5, DVD9).
>
>  Burn the new DVD from the ISO:
>
>     /usr/bin/growisofs -dvd-compat -Z /dev/hdc=dvd.iso
>

This won't work on a commercial, CSS scrambled movie. The Data will
copy, but the movie won't play. That's why you need programs to crack
the copy protection when copying a movie. It got worse with ARccOS (a
copy protection method using deliberately bad sectors) [not every
movie is protected with ARccOS].

Here is some good information about how to get around this:
http://gentoo-wiki.com/HOWTO_Backup_a_DVD#vlc

Menachem


>  Doug
>
>
>
>
>  --
>  [email protected]
>  http://www.kernel-panic.org/cgi-bin/mailman/listinfo/kplug-list
>


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