How to get world back in miinecraft ps3?

I bought minecraft for ps3 the 3rd day it came out on ps3 & I put in a lot of hours into the game. Today I went to open it and it said "world was corupt or damaged" and I looked at the seed and it was 13. Is this a thing that sony will fix ir should I just say screw minecraft and stick with games that actually back up my s***.

To be honest you just got screw over by sony same thing happened to me, I guess you will have to do all over again