This was posted on a MetaTalk forum that I found on Google :
"
I'm surprised no one bothered to mention that many mp3 files on limewire redirect you to a website that tries to make you download something called play.exe . I haven't bothered to download it to see what it is, but I doubt it would be healthy for granny's computer. These files appear to be the correct size, but have a play time of like 13 seconds, so if you're not showing the correct column in limewire, you may end up with this."
So, you're best bet is probably moving from LimeWire to an alternative. Or simply use iTunes Store?