PS3 making strange noise

Its making like a constant loading noise, kind of like a printer, but it only seems to happen when I play Modern Warfare 2. (single player and multiplayer) It plays fine but I'm concerned about the noise.
The disc for MW2 is in mint condition, I bought it new and I don't think its ever been dropped or anything, there isn't any scrathces.

I popped in LittleBigPlanet, Prince of Persia and Resident Evil 5 and I didn't have any problems. Should I be concerned? or do you think its just the game?

I think it's probably just the game. Some games seem to do that. Drake's Fortune always did that for me. Probably because there was no install so it was constantly loading from the disc.

mine does it at random times when a disc is in, sounds exactly like a printer. it's just the BD drive working hard to read data. don't sweat it.

The thing that worries me is that it never did it before. At least I don't think so, I play with headphones on.

Its a constant noise, its not every once in a while. Is it safe to play?

Same thing happens to me when I play mw2

Don't know what it is

Thanks guys, I'll probably still sell MW2 because I've got pretty bored with it :lol:

I'll probably pick up MAG or just wait til March 9th :D

It might be your disc. Similar thing happens with my GTA4 and Killzone 2.SilverChimera

samewith my gtaiv too

none of my games make noises the only thing that makes noise on my ps3 is my intercooler but it was like that when i first got my intercooler but the intercooler is suppose to make a loud noise but it does quiet down thats weird that games would be doing that