well.. which ever the case, i read over that notice and since it really doesnt have anything for you to worry about (legally) other than knowing that a robot (BayTSP explains how it works on their website) basically joined a tracker pretending to share a file and then logged all the peer's IPs and systematically sent out warning notices to them... here's the fun part.. because the RIAA has actually been taking people to court with little more than an IP and a Filename and a subpoena (to the ISP for your name), the evidence of an IP alone signifying GUILTY copyright infringement is becoming weaker and weaker... as seen:
http://www.chillingeffects.org/dmca512/weather.cgi?WeatherID=581this ruling (still on going, but in favor of the defendant, not the RIAA) is about to make it MUCH harder for anyone to sue anyone based simply on the IP address alone. from the summary: "If other courts take hold of this reasoning, this will make it very hard for the RIAA to go after individuals for file sharing based on the IP address alone. Evidence of knowledge and participation will become much more important."
what I find interesting about this is...... just wait until one of these groups (RIAA, MPAA) etc file a law suit against some mom and pop who have their wireless router open for public access, mom and pop never downloaded anything in their life, and later turns out later that someone in the public domain, unrelated and unknown to mom and pop, was using the wireless access to download music.. now I dont do this (because I never download music illegally.. thanks to the new Zune Marketplace), but I do have neighbors with open wireless routers..
what would the result of that court case? practically impossible for the RIAA, MPAA, etc to take anyone to court over an IP alone...
and adding more fun to this, using a proxy network like TOR will only help speed something up like that... the good news, if you're brought into a lawsuit and did not do what the person suing you claims (as in the case posted above).. you're almost certainly going to be award back a all of your legal fees defending yourself...
the bad side, is that our DMCA is sooooo screwed up, that its going to take a few more lawsuits of those mentioned's nature to finally put an end to all of this. hopefully.
EDIT: if TOR doesnt work out for you, and privacy is a big concern, you can go with another option of something like:
http://www.guardster.com/?Home-!Homewhere you can use a secure SSH SOCKs tunnel with just about any internet application... their servers and management is in the Nevis Islands which has very strong privacy laws. I cant confirm that they'll allow you to use the service for downloading, but if so, no one in the US or any other country will be able to subpoena your real IP information from them, and when you are downloading, your IP will just show up at a guardster.com IP address..