if your running black ops and cant get the patch for the region of the disk your running it from when you try to get online multiplayer, then simply use ARC any region changer and change the shop country code to the region your running the game on, this is a major fix for people who got a nintendo server side block and got stuck on a foreign wii shop channel, meaning when they connect online they would be greeted with a you must use the wii shop channel first message when they may have been on there 10 minutes before

If you got stuck on USA channel then change the shop country code to USA and make sure you the copy you have is NTSC or if you got stuck on UK change to UK shop code and make sure your copy of black ops is PAL

hope i helped someone!