I have found that computers running "Quick Time" cannot play the MP3s. Here are 2 ways to disable quick time and allow the songs to play. (You can always reset Quick Time afterward - see bottom of page.)
Way 1 - Inside the Internet Browser
1. Right Click on the song icon (anywhere on the slider will do).
2. Click on "MIME Settings"
3. Deselect (click on) MPEG. The "X" should disappear.
4. Close the Quick Time Window/s
5. Refresh the Internet Browser screen (Icon at top with 2 arrow going around).
6. Will open the MPEG with a different program and should play.
Way 2 - Through Control Panel
1. Click on "Start"
2. Click on "Control Panel" (second column halfway up)
3. Click on "Switch to Classic View" (left side under "Control Panel")
4. Click on "Quick Time" (May be far down the page under "Q")
5. Click on "MIME Settings"
6. Deselect (click on) MPEG. The "X" should disappear.
7. Close the Quick Time Window/s
8. Refresh the Internet Browser screen (Icon at top with 2 arrow going around).
9. Will open the MPEG with a different program and should play.
TO RESET QUICK TIME FOLLOW THE "Through Control Panel" INSTRUCTIONS AND PUT THE "X" BACK INTO MPEG.