I have the GBI isos but I got an error message when trying to burn them....any tips there? I should be able to boot GBI without swiss, right?

my gamecube memory card works but shouldn't I be able to boot the GC or swiss menu straight from the SD card? I have the xenochip. Or am I forced to use the disc that came with it?

I have a modded gc with a chip AND the SD media launcher with the disc. I can probably just burn a GBI startup disc but I still want to get the SDML working. I've put the files on the SD card and I'm booting the gc but the card won't work. Only my memory card in slot A seems to be active. I used the...