@Daco
Nobody cares.
@Tonitonichopchop
The error you're getting is because the region free hack isn't working for you. The Region Free Channels hack never really worked for me either. I would suggest installing a 4.1U wad, then installing priiloader with my latest hacks.ini (it's on wiibrew, the Ready-made one), and enabling the "Region Free EVERYTHING" hack. That one will definetely work. MM10 can display fine in both NTSC and PAL.
Or you could just region free the wad with freethewads or wwpacker.
@everyone else
Summary:
Mega Man 10 runs under IOS56.
It is USA region.
But it can work fine with both PAL and NTSC video modes.
It should work fine on up-to-date USA Wiis straight away.
If you get "This channel cannot be used" error, you need to region free it with freethewads or wwpacker (or hex editor), or use "Region Free EVERYTHING" preloader/StartPatch hack.
If you get a black screen, make sure you have IOS56 installed. It can be any version of IOS56. Download it via NUSD, or use google, and install via wad manager.
Hope that clears everything up for you guys.
And enjoy!