Harry Potter released unprotected

[Lucky Green]

Joseph Ashwood wrote:
> This looks like just a 
> pilot program. Watch the normal piracy channels though, if 
> Harry Potter shows up stronger than other releases 
> Macrovision will be around a while. But if Harry Potter isn't 
> substantially hit by piracy, then you might want to start 
> shorting Macrovision, they'll start losing customers.

I am confused. AFAICT, the majority of movie piracy today takes place
via DivX from DVD's. How does Macrovision even play a role in this?

Thanks,
--Lucky