Thank you very much indeed. Armed with this result, I will go away and try to work out how to save the live stream using
RTMPDUMP.
There are a lot of xml files that are used as an integral part of BBC iPlayer, all of which give *some* extra information - all of which I can add to the data from rtmpsrv. Putting it all together might yield a solution.
Regarding the other thread, there I was only posting about on-demand streams, of course. You'll have guessed from this thread that I know next to nothing about live streams! Certainly, as you rightly pointed out, the live stream can only be recorded in real-time.
Not that I've ever managed to.
The other snag is that RTMPDUMP doesn't support resuming for live streams (of course). However, now that just about every bit of UK domestic radio and tv is turning up on the iPlayer, pretty much 100% of radio and 75% of tv (excluding movies) will turn up as a Listen Again stream anyway.
The big advantage of Listen Again is that you don't need a 20 MB broadband connection, which you'll need to watch live tv at 1500 kbps, as you can download a Listen Again stream on a very slow connection and play it from your hard disk when complete.
I find live tv too much of a strain for my connection, and I'm using 8MB broadband! Hence the fact that I'm only interested in live Radio.