unable to dd dvd

[JD]

On 05/01/2013 03:02 AM, Patrick Asselman wrote:
> What's somewhat interesting is that some movies I buy and back up using
>> dd have no problem at all. And some do, as I stated in my post.
>> I would have thought that all commercial movie dvd's sold in the US 
>> follow
>> the same method? policy? of production.
>> But I found a method to get around the problem.
>>
>> Thanx,
>>
>> JD
>
> No, there is a whole ratrace going on between the copyright protectors 
> and the people trying to circumvent it. New methods are invented all 
> the time, sometimes even leading to problems for people who legally 
> bought the copyrighted material (due to standards not being adherred 
> to). This is why some producers have now decided to stop trying to 
> protect the materials using technical solutions, thus saving money and 
> no longer causing nuisance to legitimate customers.
>
> To get some idea about the protection schemes, have a look here:
> http://en.wikipedia.org/wiki/List_of_Compact_Disc_and_DVD_copy_protection_schemes 
>
>
> Best regards,
> Patrick Asselma
Thanx for the heads up on this.

Cheers,

JD