StationSniffer can also try to record any song file that your browser steams.  If you go to View->Options, and click the "Sniffer" tab, you'll be able to check "Record all possible music".  This tells the sniffer to try to catch ANY song that comes through your browser, even from sites it knows nothing about.  The song name won't be set for these - you'll get a generic name, that you'll then have to rename... but it should get the song.