I bought minectaft playstation 3 edition and it didn't work?

I bought the minecraft ps3 edition for 20$ on my us account and it didn't work when it finished installing, and i checked it on my EU account and the price was around 23$, why is that? And any idea which region i can safely play this?

Can I backup saved Minecraft games/worlds on PS3?

I need to uninstall and reinstall Minecraft on the PS3 do to corruption of Minecraft files. Can I use a flash drive to save Minecraft games/worlds BEFORE I uninstall the game? It's for my kids and I would hate to see them have to start from scratch all over again. They've put HOURS into this game.

If I can do that, can someone instruct me on how to to do it or post a link with instructions?

Can I unistall Minecraft for PS3 and re-install it without having to pay for it again?

Quick question here. I downloaded/bought Minecraft for my kids on the PS3. They've been playing it for a few weeks now, however, when they went to play it this morning a message came up that the system wasn't turned off properly and every time the game loads, it'll play for a minute or 2 and then the PS3 shuts down. I'm starting to think Minecraft has a corrupt file. Since I bought it and downloaded it from the Playstation Store/Network, can I uninstall the game and re-install it again without having to pay for again? Many thanks in advanced!

Added (1). Thanks a bunch guys! Having said that, isn't there a way to back up the saved worlds/files onto a flash drive, uninstall the game, reinstall the game and then get the previously saved games from the flash drive back-up?

Minecraft for ps3 keeps freezing/locking up?

I have put many hours of play into creating my world, and recently it keeps freezing up. I end up having to turn it out because it remains frozen for hours. I read some forum discussions that suggested uninstall and reinstall. Won't that delete everything i've created? I have the digital download version of minecraft for ps3.

How to tame an ocelot in minecraft ps3?

So i'm staying crouched and i've tried feeding them raw and cooked fish and i have them contained and when i hit L2 it does nothing there arent any hearts or smoke it just stays the same. Can you help me out?

How to do split-screen on Minecraft PS3?

Do both people need a connected HDMI cable, or does just one player? We tried everything but it won't work, any solutions? I put on the other controller and pressed start and it doesn't do anything. One of the loading screens said something about High Definition mode to do split-screen, any way to enable that mode? Thanks.

Added (1). We tried one cable and it doesn't work what else can we do?