My Official Revelation spurred from this article:
Bluray's extra capacity is not for FMV cutscenes, multiple region coding, holding more game data, or even holding multiple movies. It's true underhanded purpose is space for excessive DRM, antipiracy measures, and rootkits!
Just think of how badly they could ruin your media and entertainment experiences with 16.5-41.5GB of extra space that's not being used by a game or movie!
Sony, those sneaky bastards and trying to blow up the ocean.