Umm ... who ever mentioned textures / audio taking up most of the "space" on a disk is plain wrong. CGI and FMV have always taken up most of the space on a disk, regardless of the platform. Index's monster data, map data, world data, dialogue scripts, quest flags, all that takes up less then 1 GB of total space because its all basically text. Sound also doesn't take up much anymore, we're talking a one to two GB at most, and that is assuming EVERY sound clip and music score is uncompressed (I'm willing to bet money that the sound clips will be compressed). Texture data is large, but still only a few GB at most (assuming max texture size on a PS3 and them not reusing / reskinning large amounts of textures). FMV / CGI take up multiple GB's on the PS2 (reason for changing disks so much), on the PS3 if they use HD resolution videos, then its going to be 25GB+ for 2hrs. Seeing as FFXIII will have more then 2hrs of CGI, they might lower the resolution to 1080i or 720p to fit more video time, depending.