To get back on topic, currently the music industry pay to track an illegal downloader, they're wanting to pass some of this cost over by getting the ISPs to do some of the work which will result in me who doesn't do any illegal downloading having to pay this cost, which is totally out of order.
There is now no excluses to illegally download, there are loads of legal ways to try out music before buy and the cost of downloads/cds are affordable.
The music industry needs to put their efforts into increasing the availability of the music available to buy like drm free, fairuse to allow transfers between devices for the owners personal use
As to dealing with illegal downloads, well that's the industries problem to figure out, just don't use the BB fee I pay my ISP to pay for you to figure out how to sort the problem out