Having read some threads re: radio streaming, I would like to ask a this question: I want to use my Internet Radio to listen to http://www.cbc.ca/listen/streams/r1_...tetown_32.html.
I have an Asus eee 900 Linux mini notebook, which I think uses Xandros. When I use Umedia, I get a small window which tells me it is trying to access the site; however, then a message tells me it has stopped. I press the play arrow; once again, it does nothing except stop. I'm wondering if I need a particular plug-in. Perhaps your comment re: Realplayer might be helpful. I would appreciate your response. Thank you

According to what is printed on the site, it is Windows Media and not Real Player. If you have firefox and the windows codecs installed, you can probably listen to it on the web.

If you use the link: http://www.cbc.ca/livemedia/cbcr1-charlottetown.asx
then you can use a player that has an mms: protocol plugin installed. One example is xine with libmms0 installed.

Google for mplayer. There is a package with the windows codecs you can install. There are instructions on where to copy them to.
Either /usr/lib/codecs or /usr/lib/win32.

If you have a /usr/lib/codecs/ directory, you could create a symbolic link: /usr/lib/win32 -> /usr/lib/codecs with the command:
sudo -s /usr/lib/win32 /usr/lib/codecs. Then older software looking in /usr/lib/win32 will still find the codecs they want.

Further to jschiwal's excellent answer, please understand that, if you follow his instructions, the codecs you would download to play asf, are *not* Open Source.