Hey, I'm in Australia and unfortunately we can't buy any HD movies over here yet, but even so how come the movies I download are such small resolution? SD is 480p right? I've got so many iTunes movies that are 35(x)p, thats barely above the iPhone 3GS vertical screen resolution, which is pretty bad for an iPad/iPhone 4. Why is this? I'm curious... I kind of expected a minimum of 480p. Is it really such a large difference in download size to go up to 480p? Or even a little higher?