Unfortunately the option to request a CD copy of your game is not available once a purchase has been finalized. You may, however download a new copy of your game purchase from the original site of origin at any time.
A Backup CD gives you a physical backup of the games you buy and save you time on downloading. They are especially useful for users with slower internet connectivity so that installation time is greatly reduced. Installing purchased games with Backup CDs does require an internet connection for the activation process, which is identical to that of download installations.
The option to purchase backup CDs will default to your shopping cart upon checkout.