I guess you have a software to copy some CD or DVD on your pc. It means for PF that you want to make some illegal copies!

So It doesn't want to run!!! Software like Nero works fine, but with some other you come across problems!
So, you must uninstall this software an try again with PF, I guess it would work (one of my friend had have the same trouble), but I don't know if you can re-install the copy software after installing PF (I will ask him).
Good luck!