PC Computers
If you are a PC user and are unable to play sounds, your PC may not have a sound card, or you may need a sound player configured as a helper application with your Web browser. Check to see that you have a sound player plug-in or down load a free player from below.

Macintosh Computer
If you are a Mac user and can't play the sounds, you must be missing a plug-in or a sound player also. Check to see that you have a sound player plug-in or down load a free player from below.