I can’t recall where I saw this tip, but for the sake of propagating it across the interweb, I’m going repeat it.

To give DiskWarrior a swift kick in the pants when booting your machine and during general operation of the application, make yourself a backup copy of the original DiskWarrior CD on DVD instead. Simply pop the disc into your Mac, launch Disk Utility and create a new disk image of the DiskWarrior CD on your Desktop. Burn to DVD media. Done.

Alternatively, use Toast to accomplish the same thing.