I have an HP pc with built in dvd/cd writer and logitek discs. I downloaded several movie clips today and opened them with windows media player. But when I inserted a disc and clicked 'copy to disc', alongside each clip it came up with 'cannot copy' can anyone explain why this was the case, and what do i need to do to overcome this. Many thanks P.S all the clips downloaded and played perfectly - I just could not write them to dvd for some reason.