I would vote for him - lets face it he doesn't wear tights and is unlikely to do a worse job than the politicians we have in both the US and England !!!
Uncompatible medium usually means your burner doesn't like the type or dye on the discs your using.
I am a bit confused now - have you tried other discs ??
I would wait for Lightning UK! to read this and advise if any of the tabs can be used for Pioneer drives. On mine (NEC) I select change for media type DVD+R DL, then in the next drop down menu I select DVD-Rom as the book type
Still see one or two on the roads here - someone in our village has a special limited edition lavender edition one..... apparently its worth quite a bit...