[mythtv-users] Ripped DVD recordings have skips

[Mike Perkins]

Robert McNamara wrote:
> On Wed, Apr 8, 2009 at 12:48 PM, 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.
>>
> 
> Indeed.  This is exactly how rip prevention is implemented in modern
> disks.  Bad sectors are introduced into the disk to prevent
> bit-for-bit copying.  As players follow a branching path established
> by the index on the disk, they never encounter the bad sectors.  But a
> bit for bit copy will.
> 
Remember teh pyrates don't want to watch the video either, they just want an 
exact copy which they can print off in the thousands/millions and flog off 
cheaply. The fact that this prevents joe user from backing up his dvd is just a 
handy side-effect.

-- 

Mike Perkins