if you have tips for capturing RM/RA streams as they are downloaded from the BBC site, I'd be very grateful to learn how it's done!
Never tried it with video so I don't know the whole answer but I got this far:
1) wget http://theramfile.ram
2) cat file.ram to get the rtsp://url.of/thestream.rm out of it
3) mplayer -cache 96 -ao pcm -vo yuv4mpeg rtsp://url.of/thestream.rm
4) this should give you the audio and video files - combining them is left as an exercise for the reader (ie. I don't know how to do it off the top of my head)
Maybe there's a way to get them both captured to the same file - not sure.
HTH a bit
Joe