Need help backing up Red alert2 originals

[highlander]

hi, I used gamescopyworld method to back up both original cds of Red Alert2, they work fine the copies once ive copied that crack over.

BUT the second cd (sovients) stops working from 5th level + it keeps saying:

"Westwood detected an internal error"

So obviously it hasnt copied properly. the 1st cd worked fine I know cos ive completed it !

but half way thru the Soveinets it doesnt work.

Is there another method for copying Red alert2?