The stream we use is .NSV format.
There is a player that works with MAC's that will play .NSV.
You will need to download it.
That link is:   http://www.videolan.org/vlc/
The stream address you will need is:  http://rcthunder.primcast.com:8914/;stream.nsv/

Another link that talks about .NSV for MAC's:  http://www.tipstrs.com/tip/3760/

Good luck and we apologize for the inconvenience.