People who keep saying "no book-typing whatsoever" , are misinformed.
Your drive is book-typing it to DVD-ROM for you automatically.
My Toshiba dvd burner automatically book-types the dvd media to DVD-ROM, when I burn to it. I know this because I checked on both the manufacturers website and various tests.
ImgBurn swears my media is DVD+R and didn't change. It is burned in DVD-ROM format though. I tried with my other burner (that cannot be book-typed to DVD-ROM) and no game would work in the backup loader.