Virus changed Format?

I think I have a virus in one of my songs I’ve downloaded from Limewire.  When I transferred it onto my mp3 player and turned the player on, the format changed on it.  Now it doesn’t show the full names of artists or songs and it’s a pain to use.  Anyone know how to fix this??

run check disk on the device, if that doesnt work… format it and reload your tunes. If it still doesn’t work; reload the firmware.