Problems playing rtmp stream / PlayReal

Hello!

I just tried to listen to an online radio stream but it is not working. :(

I am running Logitech Media Server (7.7.2 - r33893) with a Squeezebox Radio. I just installed the PlayReal plugin but using the following URL (which I found on the web) doesn't work:

rtmp://kissfm.es.flash3.glb.ipercast.net/kissfm.es-live/aac.stream

VLC is also unable to play this stream.


However, I found this line on the Internet:

rtmpdump --live --quiet --buffer 3000 -r rtmp://kissfm.es.flash3.glb.ipercast.net/kissfm.es-live --playpath aac.stream | mplayer -vo null -idle -

That works and I can listen to the radio (using the latest versions of rtmpdump and mplayer)

Is there any way to make this work via my Squeezebox Radio?

Thanks for any help!