I'm not sure why you'd want to be opening LW using WMP. hehehe - joking. Microsoft is a greedy co. They offer a so-so quality media player & if u want something better you must pay. But in both cases u must obtain xtra codecs to play all the different formats of movies & music out there. Microsoft is heavy into licencing & putting licencing requirements on movies & music controlled by them! Get a better player & for free!!! Or get the codecs that wmp needs. A search of the forum will show you where to find sources for wmp codecs. Or for AVI Players & for audio check out QCD. Sorry I don't know that wmp error code. But all the same, I hope I've been of some help to you And don't be shy to check ut the links I've given u. Oh I just realised your topic mentioned CD, I don't know waht u mean by that?