How to play backup NTSC disk on a Pal System
I had real problems with playing NTSC backup games on my Pal system. Either the screen went black n white or froze on a green screen *of death* (meaning you needed to reboot).
First download your NTSC game (tehPARADOX.COM Online Sharing Community is great, especially if you invest in a month subscription to Megaupload & get their download manager). This is the direct link of pure gold: Hippyfreak's WII "ISO ONLY" thread 100s of Pal & NTSC games.
Get WiiBrickBlocker + RegionFrii. Both very simple to use. The latter changes (or fools the Wii into thinking its a Pal game & the former is some kind of update block. USE BOTH, RegionFrii first. Plenty of advice about them on here.
Burn your disk with ImgBurn, or whatever you use.
Ok, so you have your disk, now it's time to tell Wii it's a Pal disk using Neogamma which you should already have.
Region Options (Go down using D pad) and (Press A)
Boot Lang: Auto force (Use remote D pad)
Force Video Wii
Patch Video All
Patch Country Str: Yes
Then return to menu (Press A)
Go up to Launch Game on DVD (Press A)
If all done correctly it will play :) It goes without saying not all NTSC games will play, although i've not come accross any as yet.