Are 'transfarring' or cross-game saves region free?

Solution 1:

The answer is based on language.

If you have a game localized in a specific language which your game does not support for your region and you try to import that saved game, it will not work; however, if the save game is localized with multiple languages, one of which is yours, then it should work. Operative there is, 'should', and I say this because no game is developed the same way and there is no ISO on how a save game should be developed.

Solution 2:

Games from different regions have different game codes. This means the save data on your console is theoretically identified differently based on these game IDs. So, based on this, it means that cross-saved files won't work if the games are from different regions. The console itself would identify the games as being different, so it wouldn't pick up the save data.

This also applies to digital vs retail games. These have different codes, so save data cannot be used cross versions. I know this to be fact as my retail copy of Burnout Paradise save data isn't compatible with the Digital version of the game game I got free with PlayStation Plus.