The best method imo to clean a disk is to put rubbing alcohol on a cotton ball or something and apply it on the disk in a vertical motion (from the center of the disk to the outside). It has always worked for me.
Great, so I'll have to deal with the Homebrew Channel again -_-
When I get my Wii U in the mail when it comes out, I'm gonna get Assassins Creed 3 as my launch title and maybe NSMBU.
Well I can't really think of any but...
...I wish my brother and sister had bought a copy of Earthbound when they were kids. :/ Would have made the game much cheaper to get it then...