Can't make a Back-up of my games!!!

[_Viper_]

I'm having serious trouble, everytime i try to make a back-up of my games i get the message "please insert correct game cd". Another error i get is when i try to make a back-up of my operation flashpoint (from my orginial ) i watch the file log and it says "failed to read sector 214: failed to read sector 218: and etc... If someone can please help me i would be much thankful.

Klown