Playstation 3 Have played Call of Duty 4 game for more than 70 hours, but now it says it is loading, but then nothing happens.

Crowded servers lead to this issue, try connecting at a different time.

Welcome to the servers at call of duty :)
I've got a ps3 and call of duty 4+5, half the fun of the game is playing with a mate and I've had exactly the same problem as you. It just seems to be about trial and error sometimes, have tried connecting like you for over an hour before and then on other days it just connects wth my mate straight away.
Sometimes it helps to join a game(so you can see and hear other players) then invite your mate, if he/she to reply to your invite is quick sometimes you can get in that way.
The only other bit of advice is to try different times of the day as the load on the servers does change throughout the day, apart from that it really is an issue with activision and for me the playstation network
hope it gets better for you
tim

Please get into detail with this issue I may be able to help

To play online, you have to buy original game. There is nothing in the world which can help you to play pirated game online. cz, there is an online checking system of the original game.

if you are using a wireless connection the signal may be to weak. if not you can try deleting your game and save data. you will lose any single player saves you will also have to re download any map packs you purchased. the game should also do an update when you load again after deleting the game and save.

try again if it doesnt work then call sony to tell you how to fix it

It should work after a long time if you traded because the settings are different on different disks

Check the 24 Hz setting in the BD/Blu-ray setting area. Some televisions do not support this option. Turn it off. It will prevent blu-ray movies from playing.

have you guys tried cleaning the disc?

What is it for? Playstation 3 xbox 360 PC ?


Be a Bit more Specific and i can help you on your way =]