Mario Kart Wii not being "read"

[Moosen God]

When I dumped MKW from my Wii today, after joining the ISO files I set the game into dolphin and when booting the game it responds saying the disc can't be read. I've tried redumping the game and rejoining it but it still won't work

[Jack]

• Where is Dolphin located? If it is placed in Program Files, that may be why this is appearing.
  
• Make sure you have the permissions in Windows to read/write to the Dolphin Folder located in My Documents.
  
• Try running Dolphin as admin.
  
• Also make sure that your Anti-Virus is not blocking Dolphin.
  

If all this doesn’t help, then open Dolphin > Right click on the icon of Mario Kart Wii in games list > Properties > Verify > Verify Integrity
And then post the screenshot of the result here.