Sony had "no other choice" but to include Blu-ray in PS3
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PlayStation mega-chief Kaz Hirai told the Guardian at E3 last week that Blu-ray was the only choice for PS3's drive.
"Purely from a gaming standpoint there was no other choice for us," he said. "Why? The capacity of the disc. Last year's Metal Gear Solid 4 was pushing 50GB as it was. If it was on DVD it would have been a 6 disc set."
Going multi-disc to such an extent wasn't an option, said the exec.
"The packaging and cost would have been prohibitive and it would have been hugely inconvenient to consumers," he added.
"So from a gaming standpoint there was really no choice if you wanted a high definition gaming experience."
Full interview through there.