Does nintendo wii have a mod chip(so it could burn games)
DO you mean so the Wii itself could Burn games? If so I believe the answer is "NO" for a start the DVD drive within the Wii would need to be a burner, which I dont believe it is.
If the questionis does the Wii have a Mod chip so I can play burnt games, then the answer is "Yes". Depending on the age/model of your machine would determine the type of modchip available