"We know that every HD-DVD drive being sold to Xbox users is being used to watch films. They're not being forced to buy it," he said. "Every PS3 includes a Blu-ray drive, but that doesn't mean every gamer wants to watch a movie on PS3."

John Davison, editorial director of 1Up Network, a gaming network with 13 million monthly unique visitors, said most gamers are not interested in viewing films on the PS3.

"PS3 will live and die by the games it plays. The fact it's a DVD player is a bonus, but not why people bought it," he said.