Well I found my post and thread by myself . My Sonic Colours Wii Version doesn't work on my Wii U ? How to fix that problem appear "The disc could not be read. Refer to the Wii Operations Manual for details . The model of TV is LG 32LS3500 and my Wii U is black 32 GB Version . Well this is all infos about it .
Check the bottom of the Sonic Colors game disc. If it's dirty, clean it with a soft cloth or tissue or something. When the disc is clean, insert it back into the Wii U and see if it works. If it's scratched and not working, you need a new copy.