Did anybody manage to play the Real Audio samples you can find on Amazon with the OS2008 browser?

When clicking on such a Real Audio file, Mediaplayer is starting, is showing the Real Audio logo (so Mediaplayer is at least recognizing that this is Real Audio) and then I get a "Format not supported" message.

Also not much luck with mplayer.

Other Real Audio files are working fine though. So it's not a general Real Audio problem, but something specific to the Amazon Real Audio files.

Any idea on this?