burned disc will not play

what would cause the usb to work but not disc

If I lit one of my official game discs on fire then stuck it in the Wii, I wouldn't expect it to work. Burning anything tends to ruin it, unless you're burning marshmallows... mmmm, tasty.

some ask for help and some just want to be stupid

You're the one who's stupid; We don't support "burned" games or USB/"backup" loaders