Yeah, best thing about QuickTime (IMHO) for demonstrating animations is the ability to step forward/back frame by frame, and jump precisely to a particular frame. While I think that both Real8 and WMP7 codecs have surpassed QuickTime (even with the very expensive and slow to compress SorensonPro) for quality, neither can step through an animation to see just what happens where. Hopefully, QT will soon get the long promised Mpeg-4 codec already available with WMP, and still have this unmatched frame-by-frame control.