DiskWarrior4

[JBot]

So i purchased the application DiskWarrior4, and i have it unzipped, thus leaving me with a parent folder named DiskWarrior, and having the same named .dmg file in that folder, as well as another folder inside that named _MacOSX, and inside that folder is a ._DiskWarrior.dmg file.
Now i have to burn this file so that i can run it off a disc on my laptop, as that is the computer that cannot start up currently. The problem is, every time i burn the .dmg file onto disc, and boot from disc, the screen just turns white, and nothing happens.
How can i burn this file, so that i can run it at startup and repair my volumes?

 

[jsw]

It says here that there should be a manual in that zip file - is there?

I'd assume that you'd probably open Applications->Utilities->Disk Utility, select the DMG file, and click the "Burn" icon to create a disk - you certainly wouldn't just burn the DMG file onto a disk as a DMG file.