I am trying to edit an ISO of Wiimms Mario Kart Fun 2016-07. I created the ISO as usual using batch files that came with the distribution. The ISO works fine on my Wii and Dolphin Emulator. I added some custom character hacks without a problem using Wii Scrubber, but I would like to add a custom music pack to the game, and I can't find a working ISO editor. QtWitGui doesn't work for me, and Wii Scrubber only lets me edit one file at a time. Is there any easier way to edit files inside the ISO?