RIAA has a list of 'popular songs' that they have an automated search for. Once they find someone who shares that file on their machine, they use the built in feature to look at all the files that a user has available. Once they have screens shots of that, a little subpeona to the ISP to find out who was using that IP address to connect and you now have a case. If you've downloaded a few songs and haven't 'shared' them out, you are probably safe.
<b>Originally posted by HeyMickey</b>
IMO, the best way to deter illegal music sharing would be for the record companies to make their music available online, legally, for a small fee per song or a flat rate per month.
They do have that. But did those college students that had books of burned CDs do that? Millions of people download Kazaa on a <i>daily</i> basis. Yes, I agree that CD sales at $17 is ridiculous (it is based on LP manufacturing costs to the best of my knowledge and not the pennies it costs to make a CD), and there currently is talk that CDs will drop to $9 or less apiece. There has been a drop in record sales in the past year, but that could be attributed to file sharing or the economy. No way to tell...
Will a $9 price tag stop people from downloading? Nope. This is a losing battle that they aren't likely to win, but will take enough people down in the process that maybe they can cause some people to think about it.
Ok, I'm off my RIAA soapbox. I agree with them and I don't. If there were a site to share <i>every</i> song, then I'd subscribe to it. And what about hard to find or rare recordings? Those won't be on the record company sites...
It'll be a problem for a long, long time.