Use Homebrew to rip the ISO off the games onto a hard drive (formatted to WBFS first), then rip the ISO from the HDD with the WBFS manager onto the computer. Dolphin Emulator would recognize it.
That is what I did with all my Wii games as my console was stolen by an old tennent and I was never able to get it back. I still had all my games though and I didn't want to buy a new console. The dolphin bar and emulator was a godsend.
My ex kept my games out of spite, but my Wii was returned and I had the ISOs I wanted. I bought a Wii U a year ago and that alone was good enough for me. I'm still gonna use Dolphin at some point, though.