Wwhen i try to play game its says the data is corrupt delete data and try again

It could be the hard drive inside of your PS 3 console is bad and the hard drive will have to be replaced inside of your PS 3 console. You could just buy a new PS 3 console from Lukie Games and DKOldies and East Starland games.

That means Corrupted folding install, try to deleting COD4 Data (under game data utility).

This could be a problem regarding your game data/save data. You could try deleting the game data and save data of CoD: MW2 on your system. Go to Game Data Utility and Saved Data Utility and delete everything pertaining to Cod: MW2 including any corrupt data. Once that is over, try running the game again.
You should also make sure that your game is updated. If you start up the game and the game is asking for an update, then you should update your game and try running it again.
If you game is not updated, try updating it before doing the game data/save data. If it works, you no longer need to delete the save/game data.
Reference: http://community.us.playstation.com/thread/1629758?start=0&tstart=0

had this problem as well, restart then try it again.

Unless the game data is being saved to a memory card, I would say the hard drive might be going bad on it. Try swapping out the hard drive and then try playing the game again and see if it saves the data properly.

It's possible that you're turning off the ps3 while it's saving, corrupting the save data.
Make sure when you turn off the ps3 it's not in the process of saving.
Try the above and if you still have no luck it's possible there's an issue with your ps3's hard drive, have you had any problems with any other games?

Also, if the problem persists, try deleting the MW2 gamedata, located under gamedata on the ps3's menu.
Best of luck to you.

well, if it only does this error for one game then maybe the problem is in the game itself? Is the CD a real one? or is it copied with a golden back?
if it is copied then such things can definitely happen.

you cannot save another file until you delete previous one.Corruption occurs if the memory card is removed from console or if you reset the game while saving or loading game remember this also happens when you are saving or loading game and electricity turns off.

I don't know if you have been trying to delete the data with a game inside the ps2, but in case you have, try this.

Turn on the system WITHOUT a game inside, select BROWSER, the MEMORY CARD ICON, and i believe the corrupted data icon is a grayish black square. Choose options and then delete.
I am also heard that inserting a music cd will work as well, probably just has to not be a game inside the ps2.

Corrupted data comes from turning off the ps2, or removing the memory card while the game loads or saves data to/from memory card.
I really hope that helps, ps2's are meant to be played! Good luck.

Do so how you normally would when playing the GBA game on a GBA (It best be a GBA game, because DS and DS Lites cannot communicate to older Game Boy games), go through the menus (on the game) and delete the files. It's not a matter of the DS having the problem it's the game.

I've went through the menu's and deleted the game but my game still has "corrupted data":

First, do all you can do, clean out the slot in the DS Lite, and the cartridge (with a damp, NOT SOAKING WET, cotton swab), and try the game again. Start a new save file, save it after a ways, and try to load it again. IF it -STILL- has a corrupted save file problem, then it is time to bring it to the seller or the manufacturer.

The seller: Telling the seller what's happening is great. BUT SHOWING the seller that the save data never loads really helps! Customers can say quite a few things to Sellers just to get a new game or their money back, but showing them is pretty much proof. No, you don't -HAVE- to show them, but if the seller is -that- skeptical, it may be wise to bring your DS along with you.

The manufacturer: All games have a Technical support call number, also going to nintendo's main site,www.nintendo.com/, and going straight to their technical support pages helps too. Sending it in will warrant a little wait time, but if done correctly you will receive a fixed or new game from them as well.