Preturbed

I've been trying to set the booktype for my DVD burner without much luck. As I said, my burner is a SONY DVD RW DRU-840A which appears to be a Samsung OEM. When I tell it to "Change," I get a "Success" message, but it doesn't appear to actually work. On top of that, when I set the ID string in the advanced settings, I get a big fat nothing. What can I do?