[mythtv-users] Ripped DVD recordings have skips
Nick Rout
nick.rout at gmail.com
Wed Apr 8 21:17:05 UTC 2009
On Thu, Apr 9, 2009 at 7:48 AM, Allen Edwards <allen.p.edwards at gmail.com> wrote:
> Why is it so hard to do a bit true copy from a DVD to a file without
> doing any decryption? This would not require any defeating of the
> encryption and would allow backup. It seems to me that you only need
> decryption to view a file. Obviously I am missing something.
I think it is something to do with where the encryption keys are
stored on the DVD.
If you do
dd if=/dev/dvd of=dvd.iso
Then I believe you won't be able to play the iso on linux, cos not all
of the DVD is copied to the iso - the hidden bits essential to
decryption are not copied. Or at least thats my understanding. Apply
grain of salt.
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