I have a USB loader, works fine except two of the games - brawl & Metroid Prime Trilogy (the latter of which I REALLY do wish to play) either give a "disc read error" (Brawl) or go back to the wii-menu (MPT). How do I stop this? I want to play the SSE of brawl & the trilogy. I think I have IOS 249 [or what-ever) and rev 14, not too sure. , I also have the disc of brawl and used that to install to the USB, I don't have trilogy yet.