Can't hear my downloaded songs.
 

I have downloaded 5 songs from LimeWire, I can hear one of the songs, but when I play any of the other 4 nothing comes through the speakers, it's just blank.

There is nothing wrong with my speakers, I can play music I have on my computer already.

All songs are at least 4,000 KB in size, so they did download, they just don't play.

any idea?
pj