I tried following this tutorial using an opening.bnr that I took from a DVD game (Guitar Hero 3 to be specific) but it didn't work. I would like to speak with someone who can help me out more with understanding what is going on behind the scenes. I like being able to do things, but I'd rather understand how/why it works to fully appreciate what is happening.
Edit:
Ok, So I was able to get the opening.bnr file extracted, edited, and repackaged, but when I put it on a dvd and try to load it, the banner comes up in the WiiMenu as a GameCube disk, but in the DiskChannel, it comes up as just a black screen with no sound. The game can still be booted however. any thoughts?