RE: Harry Potter released unprotected

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