No I'm not running any other programs while I'm burning or downloading material. I don't even think it's the download itself that's bad. When I run the dls that are giving me problems with wmp 11 they play krystal clear. It's not until I try to use my nero burning program that some of the footage gives me problems. What could it be that I'm doing wrong, or what is it that my wmp 11 has that my nero burning program does'nt?