Disc dumps & mirrors
Dusk needs a supported retail rip of The Legend of Zelda: Twilight Princess for GameCube. This site never hosts or links to copyrighted game data — only how to verify what you already have.
What we mean by a "disc dump"
A dump is a byte-for-byte copy of a disc you legally own, stored as .iso, .gcm, or similar. The file extension matters less than a clean rip whose SHA-1 matches a supported retail build.
Mirrors and “free ISO” sites
Program binaries come from public GitHub Releases. Game data does not. Do not expect this guide (or Twilit Realm) to endorse random download mirrors — if the hash does not match Setup, treat the image as unsupported until you obtain a good rip.
Next step
Compare your file against the hash table and complete in-app Select Disc Image on the Setup page.