400 day won't work


I bought 400 days for my ps3 to go with the first series.
I have the disc version and digital version in my downloads part of my ps3, but that is as far as it goes. I do the steps I do for any game I download on the ps3 store, but 400 days won't work.
Please help because i'm dying to play the game.
Thanks for your time and help.

P.S. I'm new to this board so if I eff things up forgive me.
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