PS3 hard disk wont load

Hello,

i bought ncaa 11 and was playing it for like 2 days and when i turn it on it goes to push start and when i do it says reading hard disk drive. i have tried other games to see if they work and they do but ncaa doesnt. so i went and exchanged my game and the new ncaa does the same thing i dont know why its doing it. can anybody help me?