Dolphin’s internal code can read the WBFS header, interpret the file system layout, and retrieve the necessary game data on the fly. You do not need to convert the file to play it.

If you have a library of WBFS files, you can easily convert them within Dolphin:

Convert your games to RVZ or ISO for proper support.

WBFS was designed with the singular goal of saving disk space. It lacks features that are standard in modern emulation: