WiiKey Fusion Announced:
WiiKey Fusion Announced - Page 3
"In the latest d3-2 drives that started appearing in Wiis in Europe and North America at the start of August 2009. If your DVD drive is a D3 version 2 it will not be able to play backups in disc format
, but will be able to run ISOs from SD cards!"
Looks like wii fusion is NOT suitable as wont play DVD backups - per post above. So one of the two D2Sun chips is looking more like the answer.