You cannot simply put a GameCube disc into a standard PC drive. Instead, you must use a modded Nintendo Wii or GameCube running homebrew software like CleanRip to "dump" the disc contents onto an SD card or USB drive.
– If you own the original GameCube disc, you can back it up for personal use (laws vary by region). Tools like CleanRip (for Wii) can create ISO files from your own disc. Paper Mario Ttyd Iso File
Right-click the game in your Dolphin list, go to Properties , and use the Verify tab to check for a "bad dump". You cannot simply put a GameCube disc into
lists specific fixes for common graphical glitches like the 'Bounding Box' issue. Expanding the Game ROMhacking.net go to Properties