PAL is an european version. NTSC is american version. (??)
And yes, if you make new isos, you can still use the old memcard-files.
I don't think you can use PAL saves with NTSC games and vice versa..
And yes, if you make new isos, you can still use the old memcard-files.
I don't think you can use PAL saves with NTSC games and vice versa..