Backin up... Cd to Hard disk to CD

[StartX]

I want to know... how to copy Original CD to Hard disk then copy the Files back to the CD...

I want to add some files from the Original...

I went and Copy my Black and White Game to the Hard disk and added some patched file... i think 3 files on other directory.. then added them again to the CD then I burned it... But When i setup the BackUP cd.. It wont setup... it will give out an error.. why cant i copy Original CD to HArd disk then back to CD