If you can't get windows media to work, try downloading VLC Player here http://funadvice.com/r/3js8n430lo it's free and plays just about everything.
when speakers go out they play and dont play randomly then the sound fades lol it could always just be the player
they played before like a few monthes ago and my speackers are good cuz i was just on youtube
Your speakers on your computer could be going or the song could be messed up
yur computers got a bug