From what I've seen those licence requirements only seem to apply to the smaller files. Correct me if I'm wrong. The best solution is to downld alternative formats such as mpeg/mpg, avi, avi-divx. These are much better formats & do not include M$'s DRM within them that can incorporate licencing, links to advertising, spam sites, viruses, etc. M$ formats such as wmv & wma really are an insult to one's intelligence. They are bad for the computer world b/c they invite corruption & the above by dubious sources.