Hacking GCOS

[DGSystems]

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[niklasnyfiken]

Are they the same region as your Wii? Or maybe your GCM shrinker is buggy.

 

[pewpz]

Someone mentioned that you needed to restart the GCMutility after you shrink an ISO, otherwise you get the green screen and/or other issues.

 

[shtonkalot]

I have burned Mario Party 4,5,6, and 7 on a GCOS multigame (shrunk using GCM something, i forget the name)

Mario Party 4 works fine but the others show a solid green screen.

any ideas why?

The green screen can result from the wrong video mode being selected.
Try both PAL and NTSC as well as the Auto selection.

 

[jaxxster]

What stonk said, Instead of using auto detect hit the button for whatever region the game is.