Recording a Real (or other) stream to mp3:

mkfifo soundpipe

lame -b 64 soundpipe filename.mp3 & mplayer -quiet -ao pcm -aofile
soundpipe URL

(Mike McKay, oxlug, 2004-7-14)

mplayer syntax keeps changing. Dump to wav file with

mplayer -ao pcm:file=filename.wav -vc dummy -vo null rtsp://whatever.rm

-- should presumably work with FIFO too. [2007-01-26]