Wow those xbots crack me up. They keep talking about multi-disc games. Well there is a simple reason why it will be the exception and not the rule: Production Costs. That is the bottom line. Why spend 10.00/per unit to produce a game when you can spend 5.00/per unit you still get to charge 60.00 each at retail.
For the record I dont have actual production costs for one disc vs. two those are just hypothetical numbers.
Look at Gears of War they axed the two fights with the Brumak(large creature that chases you after leaving the mansion) because of disc space.
Not to mention that the game is about 8-10 hours max start to finish. Just think how short it would have been without all that clever compression
Then they always talk about downloadable content. Well my "premium" 360 has a 20gb hd, well you can only use 13gb of it the rest is M$ junk. Now I have about 6 demos(5-6gb), RB6 Vegas Red & Black pack(2.2GB) and a few other things and I have an amazing 3gb left. Sure you can get rid of demos but the map packs from RB6 you basically have to have for online play.
To top it off the dev's can't even write the games to use hd support due to the fact that there are so many "core" systems with no hd's at all.
The bottom line is the ps3 has all the benefits with none of the weaknesses.
You think there are any developers out there going "damn 50gb's just isn't enough for the game, were going to have to drop some content".