- Play both PAL and NTSC version of the game.
- Launch SaveGame Manager GX and extract the PAL version to SD. (you can extract NTSC version too, but it's not needed. See bellow).
- On computer, rename the folder from SD:/savegames/00010000xxxxxx50 (P, for PAL games) to SD:/savegames/00010000xxxxxx45 (E, for NTSC-U games)
- Back on Wii, Launch SaveGame Manager GX again, and put back the xxxxxx45 save file into the Wii.
Code info:
J = 4a
P = 50
E = 45
X = 58
You can extract both versions to SD and check if they both contains the same filename and file number.
Sometime a savegame from one region to another doesn't use the same file format so you can't convert the region for that games.