Its not easy I do believe their is one or two commercial products out their that can do it for you. I did experiment a while back with recording them using a visual basic program I put together. So you could have each tune in its own file. This is for recording shoutcast radio channels. I could send you a copy of the program (just message me on here) if you fail to find anything better. You could also setup a bid request on http://www.rentacoder.com to get someone to program it for you if you like.