Rainbird on 18 June 2011
There's no reason not to use blu-ray honestly. Blu-ray discs aren't expensive to make, and using them for games would benefit everyone as it would bring the NextBox in line with the Wii U and PS3/4.
On top of that you would be satisfying everyone who actually do buy blu-ray discs, and not making the PS4 more attractive (as Microsoft wants to rule your livingroom, they would want to shut Sony out as much as possible).
DVD have already proven a limiting factor this generation in some games, and with asset size only increasing for the next generation, DVD will become even more of a bottleneck.
