I've been having a debate with some people on the X1 boards about Bluray discs wasting our space with games like Killzone setting the precedent to make mediocre looking PC games into 50 gbs of uncompressed junk.
But it seems that the PS4 camp is thoroughly convinced that the 50GBs is mostly unique art assets , next gen graphics and because the game looks like something running off of a high end rig. When I told them that Crysis looks more technically demanding and is about 7 gigs, they say Crysis looks like crap compared to Killzone SF without the texture pack (not taking into account that the texture pack is really only a few gigs...).
So... maybe someone can fill us in on the technicals. Do console games naturally take up many times more memory usage and does Killzone look like it is worth 50GBs?
Thats what I said. But they are convinced its all because of "next gen graphics" and because programming on consoles is "different". When I point out the small file size of Crysis, they say that Crysis only looks good because of high end PCs and not because of whats in the file...
I would be willing to bet almost everything that it isn't 50gb's of data and if it is, its just because its uncompressed and can save a little decoding performance.
PS4 can't even output every game at native 1080p... incredibly detailed texture work would be wasted. Models and geometry in general is very small. Sound may be uncompressed and can add up if there is a lot of different assets but even then its not something anyone would notice over a well compressed version.
Basically, its lies and misunderstanding which isn't surprising as those terms describe most console fanboys.
PS3 also had such a slow BDR drive that developers had to copy reused assets over and over again all over the disc so that they were closer to other data. Add in what you also described which is known as 'blanking' where unusable blank data is added to the disk as filler and its apparent that there isn't 50gb of worthwhile data being used for the game.
You aren't gonna see true next gen on the consoles for a year or two. The PS3 and Xbox 360 aren't just gonna stop existing. There is going to be a wind down period for them where we will see most games on the PS4/Xbone also on the PS3/360 for the next year or so. You won't really see the push into next gen until those consoles are gone.