To be honest, I'm surprised no one has done this before. Or perhaps, people have, but just haven't made it public. Streambox has created a system to save RealNetworks streaming audio in MP3 or Windows Media Audio format. This upsets RealNetworks who has always claimed one of the nice things about streaming is that the content provider can decide whether or not the end user can keep a copy, thanks to its encryption. Streambox breaks right through that encryption, and expect RealNetworks not to just accept this "innovation".