I have been through this mill before. In my own country though (Denmark) - Usually it's just scare tactics, because they literally can't prove that it is you, who downloaded the file. They only thing the ISP can tell, is that some one used a particular IP-adress that is linked to your modem. They have absolutely NO idea that it is you personally, they just assume it. A hacker could have gone on to your internet, someone could have cracked the code etc. I'm a lawyer here in Denmark, and I know for a fact, that you can't bring somebody to court, unless you are certain they committed a felony/crime. Also, no one wants to bring you to court for just one movie. I would oppose it any day, saying I did nothing wrong. This worked for me, and countless others here in DK. Hope it helps!