HElp (with WMP)

[honeloveshim]

ok i have windows vista and i got limewire and i onlyhave windows media player that came installed when i bought the computer now i have downloaded some songs i wanted and last night i was able to burn them on a cd and now today im having problems cause i forgot how i did it and i wanted them to go into windows media player so i could burn them right from there on to a cd last night so i changed where to play the songs in wmp and put the songs into a playlist now its letting me listen to them but i can't burn them it says file invalid someone please helpp me out!!