Suggestions for software that can save streaming audio to disk?

[Analog]

I'd like to save some streaming audio to disk from our corporate intranet. It is streamed over Windows media player 9 or Real Player (users choice).

Anyone have suggestions or experience with this? Any compressed saved format would be great, a WAV file would probably be too big to be manageable. This is just conversational audio, so no need for high bit rates etc.

Thanks.