I have noticed that playing back a movie using jit.qt.movie seems to be choppy. For example playing a movie that's 640x480 in resolution that's in photo-Jpeg compression, although the frame rate stays above 30, it does not play the movie at a constant speed. This is especially noticeable while the graphic is spinning such as a logo.
You can download a sample movie here and test to see what I'm talking about (right click and save as):
Can anyone offer a solution?