http://www.demo-it.net/play-demo-games-now/

My PS3 will not play PS3 games?
My PS3 has been a fill for a week, until yesterday, unitl recently, it was when I downloaded the update 2.53, the system would freeze when I pressed the "PS" button while in a game, but at least I could play. This was after I downloaded the update 2.48. Now, when loading a game, the system hangs after the words "PlayStation 3" appears. This is not a game, what is happening to all my games, demos. When I downloaded the 2.53 update, I thought that would solve the problems caused by 2.48, but made matters worse, disable the use of 50% my desk. The games are only 50% of what I use for my PS3, the other 50% is the cinema. Atleast I can use my PS3 to 150 GB you want the video 9 I have in him (Movies / TV Shows)
Your PS3 might be broken. First go to a Gamestop store nearby, you can say something. So if your board does not work, then sony contact us at: 1-800-345-7669 You can get a replacement ps3, or you could get your's reformed.
Pokemon Heart Gold – The Official Demo Gameplay from Japan