The record companies are taking an obvious step to crack down on file sharing — logging which files are shared and the IP addresses of the people sharing them. It surprises me that they aren’t also sharing bunches of files that look just like MP3s people want but are actually just recordings of either promos or just garbage. Tracking down and busting the real file sharers and lowering the value of the network by “spamming” it with junk are the steps I’d take if I wanted to get rid of file sharing.