It appears (based on the icon in the top right corner) when you Exit -> Exit After Saving, the actual writes to disk don't occur until after the user has returned to the main menu. This will lead to savefile corruption as users are prone to turning off their systems immediately after they return to the main menu. Delayed writes should not occur when the system provides explicit writing to disk notification (this includes Autosave as well).
The little chest and arrow up top is letting you know the Save Cache and options files are being updated. Anytime you see a loading screen/saving screen w/ a progress bar, the game save file is being read from or written to.
I have been playing for weeks without a corrupt save and i always exit the game during the cache update but never during the game save update
Also, I almost never return to the menu or use the save and exit option, instead I simply save and use the PS button to exit to the xmb
I have been playing for weeks without a corrupt save and i always exit the game during the cache update but never during the game save update
Also, I almost never return to the menu or use the save and exit option, instead I simply save and use the PS button to exit to the xmb