Dolphin crash on game load, memory card issue

[SirCasimir]

So I got Dolphin 4.0-3933. I try to run my ISO of Soulcalibur 2, but when it starts up it says "The Memory Card in slot A is formatted for another market. Please insert a different Memory Card into slot A. Press Y to format the Memory Card. Press START to continue without loading." Whether I press Y or START, it goes to the loading screen with the waving green bar in the text box, which goes for a few seconds then freezes, and the only way out is to quit Dolphin. Memory card slot A in Dolphin settings is set up, so I don't know what the issue is.