Apparently SB01 and SB04 both don't have a write strategy for those Media IDs. It's probably using a default generic strategy.
SB01:
DVD+R supported media types: 74
------------------------------------------
(...)
RICOHJPN R02 12x,8x,6x,4x
RICOHJPN R03 18x,16x,12x,8x,6x,4x
RICOHJPN R03 20x,18x,16x,12x,8x,6x,4x
(...)
SB04:
DVD+R supported media types: 75
------------------------------------------
(...)
RICOHJPN R02 12x,8x,6x,4x
RICOHJPN R03 18x,16x,12x,8x,6x,4x
RICOHJPN R03 20x,18x,16x,12x,8x,6x,4x
(...)