If anyone is interested I converted a F-Zero GX (NTSC-U) AR code to .gct to make the game save valid for use with DIOS MIOS 2.2, it works with both real memory card and NMM.
If using real MC restore the gci file to ANY memory card (I use ctr-gcs to export and import gci files), copy the GFZE01.gct (provided in the download link) file in the same folder GFZE01 where the game.iso was copied. Plug the MC in solt-A and start the game, no more corrupted file message from now on.
For NMM first extract the F-Zero GX gci file and use gci2nmm by crediar, after conversion a folder named GFZE8P is created, inside there are two files f_zero.dat and stats.bin, then ONLY rename the folder to GFZE01 and copy the renamed folder and its contents to the "saves" folder in your USB/HDD device ("saves" is the folder NMM creates to store gamesaves if the game has the compatibility to work with NMM).Copy the GFZE01.gct as the same instructions above. Start the game and as expected there's no corrupted file message.
Download link gct cheat code for F-Zero GX
https://anonfiles.co...18dd9cc1065ea5f