Blowing It Out of the Waters

I knew Uncharted was a great game but i didn't expect it to be a technical marvel on such a beastly machine like the ps3. Apart from the initial loading time when booting the game there is virtually no loading time on this game not even when you die and have to restart from a checkpoint. The game runs seamlessly from one part to another without the need of any data installed onto the hard disk, how did naughty dog pull off such a feat?

The best part is probably the no loading time when you view cutscene on the bonus gallery which Resident Evil 5 despite coming one year later couldn't do.