I downloaded NGS02 demo few days before, but when I put my NGS01 into the PS3 today, it shows an error message: The copyright protection information is invalid(80029513), anybody know what happened, I suspect all NGS01 are not able to run now, please help!

I have the demo installed, and I just checked on my PS3 if NGS 1 still works.

it does, there's nothing wrong with my PS3