50Gb Blu-ray wasn't enough, says Kojima
According to this (it's a bit sketchy, but plenty of sites are reporting it), MGS creator Hideo Kojima has claimed that Blu-ray indeed didn't offer enough space for MGS4.
His comments came after news last week that each version of MGS4 will contain only one VO due to space restrictions. All we can say is thatwe sincerely hope we're not about to buy a 1Gb boss fight and 49Gb of moody cut-scenes.