QUOTE(koolkid1935 @ Aug 1 2008, 09:52 PM)

I am sort of confused. Wouldn't the PC have a similar limitation as far as how much can fit on a single DVD? It seems as if their concern is the cost to go with multiple discs, but he also inferred this problem is not as big on the PC. I am going to take a guess and say that a DVD designed for the 360 (Microsoft licensing included) costs more than just a 'normal PC' DVD? Meaning that they *could* do multiple discs for the PC and still be OK as far as cost to manufacture?
While DVD9 has the same size between PC and 360 (not accounting for whatever MS forces them to put on 360 discs) there is a difference in a system where you are expected to install the vast majority of the game to a hard drive vs a system that you can't assume that there even is a hard drive.
Imagine this, a DVD holds 9GB (for easy math) and a game has 4GB of actual game code (3d engine, physics engine, AI etc) all of which has to be available any time the game is playing regardless of where you are in the game and 12GB of maps.
Now you would think, total 16GB, no proble as 2 DVD9s hold 18GB, split it up so you put 8GB on each disc, problem solved!
Not so fast... think about the break down... half the maps on each disc is 6GB of maps per disc. Ok...
Now for the game code... half on each disc is 2 GB per disc, total 8GB, golden!
Wait... you can't have half the game code on each disc... you can't leave out the AI portion for the first half of the maps and leave out the physics engine for the second half...
So really what you have is 4GB required to be on each disc you use.
So really it will take 3 discs:
Disc 1 4GB game cod and 4GB Maps
Dsic 2 4GB game code and 4GB Maps
Disc 3 4 GB game code and 4GB maps
Now your good to go but you spent 3x the price producing discs... ouch.
Now on the PC front, you really can do 2 discs with 8GB on each.
Disc 1 has 4GB of game code and 4GB of maps
Disc 2 has 8GB of maps
Copy the contents of both to the HD, voila, whole 16GB game ready to go!
Even more, on the PC you can count on an HD so you can heavily compress a lot of stuff (stuff you can't decompress on the fly due to processor overhead and storage needs of the uncompressed data) then uncompress it all during install.
It might even be possible to compress the entire 16GB game onto 1 DVD9 then decompress the whole thing during install to the HD.
So you see DVD size is not the only factor in distributing games.