i bought tv shows from iTunes and turned them into mpeg-4 files, I've been trying to use the video converter that my Creative Zen came with, but it says that the videos aren't 'valid video sources'. I been downloading (and deleting) video converters from all over, but that annoying 'error/don't send report' pops up. But, I do know that videos from iTunes are protected. I've been able to put iTunes music on my Zen, but the whole video thing still isn't working. Does anyone know anything?