At the lowest level, CD and DVD formats are a lot more complicated than you
might think. Its not just a case of writing the 0's and 1's from the data
you want to store onto disc.

Theres several layers of error correction and the fact that the data has
To be encoded in such a way that it can be read back reliably.

If you want to know more, try googling for EFM (eight fourteen modulation)
and 'Weak sectors'

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of smo
Sent: 28 November 2005 17:02
To: free60-devel@lists.sourceforge.net
Subject: [Free60-Devel] Re: Game DVD formats

Hello,

My messages sounded a lot like it was about game piracy. My apologies,
it definately
wasn't about that - I'm more interested in how the security functions
from end-to-end.

On 28/11/05, smo <[EMAIL PROTECTED]> wrote:
> Hi,
>
> What's so special about current game console DVD formats that render
> them uncopyable on a PC? They do contain somewhat standard DVD
> characteristics,
> don't they?
>
> I've tried researching this topic and all I came up was vague
> suggestions about the discs having a fake TOC and a proper TOC on a
> second layer. If I were to make a bit-for-bit copy of a game DVD (say
> if a PC DVD drive could do that), how would the console tell it apart
> from an original disc?
>
> -smo
>


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