Are any of the RealAudio and RealVideo codecs (i.e. within ram/ra/rm files) Windows-only? If they are, is there any way to look at a stream and see what formats are missing from the 770 realaudio/video players? The only stations I've listed with problems are ones claiming to be realaudio/realvideo.

As well as those of course it's a real pain that so many radio stations only use Windows Media (including 95% of stations in Canada, and most commercial stations in the US), makes the 770 far less useful as a radio player.