I'm not much of WMP knowledge. I presume you can add them to its library OR ... create a playlist within LW & save it. Then open the playlist with WMP. Then eventually you'd need to add them to its library. After all, a playlist file is purely a reference to the songs. So if you moved the songs the playlist wouldn't be able to find them. Add the others how you added the 1st. lol Sorry! I don't know all of WMP's abilities & needed actions.