If we're not on the radio where you are, please listen online at: http://www.computeroutlook.com , http://www.techoutlookcentral.com , http://www.techoutlookcentral.com/audio/tos.pls , http://war.str3am.com:7830 , or http://war.str3am.com:7830/listen.pls . We also rebroadcast shows 7 days a week at noon Eastern Time on World Internet Radio Network ( http://www.wirnonline.com ).
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The http://war.str3am.com:7830 can be opened in mplayer or VLC on Linux.

http://war.str3am.com:7830/listen.pls is actually just a text file which points to http://war.str3am.com:7830, it will work in Linux with a syntax like

"mplayer -playlist http://war.str3am.com:7830/listen.pls"

(I have a link set up on my Linux box with that and it then opens http://war.str3am.com:7830/ , which is the entry within the playlist; when the stream is up, that works.)

.txt and .m3u extensions are also commonly used for text playlist files like this.

<begin extreme geek mode now>
I'm checking further on configuring mplayer or other Linux players to automatically recognize the .pls extension - files that may be involved are /usr/share/applications/defaults.list , /usr/share/applications/mplayer.desktop, and possibly doing something to add .pls to the audio/x-scpls type
<end extreme geek mode now>.

I modified
/usr/share/applications/defaults.list
to include the lines
audio/x-scpls=mplayer.desktop
and
audio/x-pls=mplayer.desktop

using Firefox, I clicked on the link to the .pls file, and it asked if it should open it with mplayer - I told it yes, then showed me its download window with listen.pls; I clicked on Open and it did open mplayer, but apparently still wasn't catching the -playlist switch needed. (similar results with Opera.)

In Opera on Linux:
Tools, Preferences, Advanced, Downloads, Add or edit, audio/x-pls(tab)pls, open with other application, fill in gmplayer -playlist (or kmplayer, or whatever flavor of mplayer you're using) & check "Pass Web address directly to application". Same for audio/x-scpls This lets you click on a .pls link and bring up the stream in mplayer!