With
Dolphin. First download it, install it, and then:
- Open Dolphin, then: Tools>Memcard Manager (GC)
- Then, on the Memory Card A part, Select Browse.
- Browse on the "saves" directory in your SD card, and open any of the Memory Cards.
- Select the save file, and then make a right-click. Select "Export Save". Select the directory where you want your file and let it do it's job.
- Do Steps 3 and 4 with every Memory Card Nintendont created.
- Then select the option on Nintendont to use one (big) emulated Memory Card. I recommend you to don't change the size unless you have a lot of saves for the game. If that's the case, only double the size.
- Open any game with Nintendont. Create data and so on (just to make sure it works). Then exit Nintendont and go again to the computer with the SD.
- Repeat Step 1 and 2, and select the new Memory Card. Open it.
- Delete the new data you created (if you did).
- Now inject every old save you had in their own separate Memory Card.
That's all man! Now enjoy Psycho Mantis readin' all over your card when playing Metal Gear Solid.