Super Smash Bros Brawl. - Unable to read the disc

Heyho Boys & Girls,

i'm new here so welcome @ all :)
And i'am sorry for my poor English...but i'am German so...please dont be so hard to me^^
Okay, let's get to the Question:

I have a White PAL Wii with Firmware 4.3E and the Wiikey Fusion.
So i just can play Games from SD Card, not from DVD's.
The Chip works great and all GC & Wii Games i've tried so far, are working.
But now i have a problem with downloadet Super Smash Bros Brawl [PAL Multi 5 Version]
I can start it from the Bootmenü of the Wiikey Fusion, but when it's restarts the Wii, and comes to the Wii DVD Loading Screen, it just comes this Error:

Unable to read the disc

I've read something about to change some things in the ISO to make it work.
But i dunno really how i do this...so..is there is fixed ISO around there?
Or is there a different way to solve this Problem?
Because on the official Site is postet: it work's with SSBB...
And how i can see many People can play it with the Wiikey Fusion...
I hope you've understand me ;P and it would be Great is someone can helping me =D

Best Wishes,
Fintus

If you asking for help on a pirated (downloaded) game then we cant help you.. Piracy is NOT supported here.