What, nobody said these things I am about to say yet?!
1. The first Uncharted took up all the space on a 25 GB BD, it's all about building for the console. With the 360, you have more limited space, so you have to compress things more, whereas you don't need to compress as much on the PS3, because you have much more space. The major benefit is of course that you don't have to spend a lot of power uncompressing 
2. R&CF:ToD was like 18 GB or so I believe...


















