The thing to remember about CDs and DVDs are that the actual data (the physical representation of 1s and 0s) is encoded onto the metallic disc beneath the clear plastic, in the form of "pits and lands". The burning laser physically burns pits into it to represent a state, and leaves a land to represent another state. As long as the disk is not so scratched that the CD/DVD drive read head can differentiate between these pits and lands on the inner metallic surface, the CD may as well be spotless for all the difference it would make.
The better your CD/DVD drive, the better chance that things will go off without a hitch.
Barring any physical damage to the actual low-level partitioning sectors, or damage across the entire disk in such a way that destroys the readability of all contiguous data, you should be fine.
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