handles HD videos better than quicktime. Here is the test. They are both playing the same video side by side at almost the exact same time. You can clearly see which one outperforms the other. Excuse the audio, this is a video test... of course on the vaio p the audio will not be in sync since its running two videos at the same time. That is just asking too much out of the processor and graphics. Please ignore having the windows media player open over the quicktime. that dont mean anything. I ...