I have a Creative Zen V Plus, but I can't determine which file type is needed for video playback. The official site and manual say "transcoded fiel types" and newegg says uncompressed avi, other transcode file types. I have various avi's, wmv's that say not supported, and it doesn't support MP4. Any idea on what I am doing wrong? Or know specifically what I need since the official places dont give me an answer.