: An exact, 1:1 copy of everything on the physical disc. Because it includes all "garbage data" (padding used to push game files to the outer edge of a physical disc for faster reading), every ISO file is approximately 4.37 GB , regardless of the actual game size.
If you are using a real Wii with a USB loader (like USB Loader GX or CFG Loader), or an emulator like Dolphin, you should almost always use WBFS files over ISO files. wii games roms wbfs
Which of these would you prefer?