well, if you really want to get this Genius SnoCross release working on your DC, you'll have to stick to the instructions you've just posted and use CDRWin to burn the game.

Just get some CDRWin demo version and you'll be able to burn it just fine. (at 1x, but well you'll save a lot of coasters)

The game is selfboot so just stick to the guide, install a cdrwin demo, burn, and then uninstall it.

good luck