How do i back up a game file(Pandoras Box)onto a disk



i have a game Pandoras Box i would like to be able to back it up onto a disk.
All i have is a SONY CD-RW/DVD ROM CRX320A do i need to get or download something in order to burn this game, i only have NERO 6 no other type of software or programs to help me back up game files onto a disk. Plese help me back this game up. I hope this is all the info i need to put on here. Do i back it up as data?