If you are experiencing issues getting your games to run after a conversion, verify that your source file was a clean, uncorrupted dump before changing its format. If you want to look into a specific use case, tell me: What are you trying to run this game on?
The Ultimate Guide to Converting Z64 to ISO: How to Convert, Emulate, and Manage Nintendo 64 ROMs z64 to iso
If your goal is to play N64 games on a console like the Wii, you must "inject" the ROM into an existing Wii Virtual Console (VC) ISO or package it as a Homebrew application. Tools Needed: If you are experiencing issues getting your games