Remember what I was saying here? Well, I may have spoken too soon.
"Industry executives say that the newest 16X DVD burners that will ship this fall will run into the same physical limits as CD-ROM drives, ending the "X race" of faster and faster speeds. Manufacturers will still have some leeway to charge higher prices for dual-layer DVD burning capabilities, but for many, a DVD burner will become a commodity product later this fall. For the first time in more than a decade, moreover, the optical storage industry also won't have a clear-cut path leading toward a next-generation storage medium."
A pretty interesting read here.