audio codec

Hello. I was wondering if the following codec will be supported. It is part of 
Microsoft media player 9. It is an asf voice codec and mplayer gives the 
following error message:

"Cannot find codec for audio format 0xA."

Here's an example of this audio file:

http://www.cloakanddagger.ca/media/clips/week29-cameron-linear_time.asf
http://www.cloakanddagger.ca/media/clips/week28-bielek-tesla_weapon.asf


I'm using the latest version of mplayer (MPlayer 0.90-RPM-3.2) with all the 
codecs installed, including the experimental ones.

Regards,
Stan