: Use Wii Backup Manager or Wiimms ISO Tools to convert your own legal backups into .wbfs or .iso formats.
Given these points, it's unlikely that a high-quality, extra compressed ISO for "Call of Duty: Modern Warfare 3" for the Wii exists or would be feasible. However, if you're interested in similar gameplay on Wii, you might look into: : Use Wii Backup Manager or Wiimms ISO
The search for "highly compressed" ISO files for games like Call of Duty: Modern Warfare 3 This will result in a final download size of roughly
Take that 2.5 GB .wbfs file and compress it using 7-Zip (Ultra settings, LZMA2, dictionary 256 MB). This will result in a final download size of roughly . Dolphin Emulator (PC) : For true "extra quality,"
: The Wii version allows for deep sensitivity and deadzone adjustments. Unlike the Black Ops port, you can change sensitivity on the fly without exiting to a main menu. Dolphin Emulator (PC) : For true "extra quality," play the ISO on the Dolphin Emulator . This allows you to upscale the resolution to 4K at 60FPS
: To get "extra quality" on an emulator, focus on upscaling and fidelity settings in Dolphin rather than the ISO itself.