Extremely severe bug is causing all of the following features to crash the game while it is attempting to save, causing the world to become corrupt and unplayable.
2) Manually selecting "Save Game".
3) Manually selecting "Exit Game".
4) Manually selecting "Exit Game" and then "Save and Exit".
Split-screen and Online play exacerabate the issue. There is also a memory leak in Split-screen that causes the game to just simply go to a black screen at any random point and kicks you back to the PS3 XMB desktop as if you had held the PS button and chosen the "Quit Game" option from the PS3 menu.
This is so severe that the PS3 version of Minecraft is completely broken. You cannot play any world more than a few hours before you crash and it corrupts. This is on a freshly reformatted PS3 with the latest firmware, and with the latest version of Minecraft installed before even loading the game for the first time.
The issue is affecting tons, if not all of the PS3 players currently. Please see this post for more details:
I can't re-open this bug? It's not resolved in 1.45!