How can I Copy Gunman chronicles 1:1 ?
 

I tried to copy it, and the the copy was succesful.. But when i want to star the game, then it says , that it isn't the original disk..

What is wrong with my copy ?

The game uses SecureRom protecton.
Make a image using clone CD
Read at 1 speed
Read sub channel data and audio
Write with nothing tick except close last session. Write at max speed

I did everything at one speed because there are fewer chances of errors and I’m tired of making coasters. And I read and write using a Sony 140E