It is possible to patch one version to another version?

This is what I have been thinking about. I have also read the threads and the tutorial before I come to make a new post. I have been wondering if it is possible to patch the NTSC U/C gamecube ISO to NTSC J ISO? Since my Nintendo Wii is modded with Wiikey. With Wiikey, as known to everybody, you can burn multi-gamecube isos on one single DVD-R. My Nintendo Wii is the Japanese version, not the US version. But the ISO I downloaded via BT such as Mario Party is the NTSC US version and I just wanna patch it to NTSC J version as I create a multi-gamecube isos. Would this work better on my Japanese Wii or would that work? Because I have heard lots of people said that Wiikey has problem supporting gamecube games.