Last firmware for 216D is 1.09. If you are using Pioneer stock flasher, just double click and follow the instructions
You can also use DVRflash.
If you need DVD-ROM booktype (isn’t it automatic for DL ???), than if mediacodespeededit patch doesn’t work (I don’t know ), you may have to crossflash your Pioneer to 216 or 216L (S16J). Last S16J firmware is 1.10.
Edit : thread is about 216[B]D[/B], what about yours ? 216D, 216, 216L ?