How Do You Delete Save Data?

[mbc07]

It's recommended to perform an online update (Tools => Perform Online Update) and then manage your save data through System Menu (Tools => Load System Menu). That's the only way of managing Wii Save Data without potentially messing the NAND and you can also manage GameCube Memory Card saves even if you're using a GCI Save Folder, which can't be managed through Memory Card Manager...