I read the review at HWZ right on the day it was posted. However, look at the list.
DVD-R = Fujifilm 8x (TYG02)
DVD-R = TDK 8x (TTG02)
DVD-R = Verbatim 8x (MCC 02RG20)
DVD-R = Maxell 8x (MXL RG03)
DVD-R = Ritek 8x (RITEKG05)
DVD-R = Philips 8x (CMC MAG,AE1)
DVD+R = Verbatim 16x (MCC004)
DVD+R = BenQ 16x (PhilipsC16)
DVD+R = BenQ 8x (DAZONAZ2)
DVD+R = TDK 8x (RICOHJPNR02)
DVD+R = Smartbuy 8x (PRODISCR03)
DVD+R = SKY 8x (AML002)
DVD+R = Verbatim 8x (MCC003)
DVD+R = Fujifilm 8x (YUDEN000,T02)
DVD-RW = Mitsubishi 4x (MCC 01RW4X)
DVD-RW = Verbatim 4x (MCC 01RW4X)
DVD+RW = Smartbuy 4x (PRODISCW02)
DVD+RW = Maxell 4x (RICOHJPNW11)
DVD+RW = TDK 4x (RICOHJPNW11)
DVD+RW = Verbatim 4x (MKMA02)
DVD+RW = Fujifilm 4x (RICOHJPNW11)
Only five types of 8x DVD+R and two types of 16x DVD+R media were tested and there's no indication more than one disk for each type was used for testing or whether different speeds and different firmware were tested.
As I said above, read the threads on this forum first. You can find far more complete and balanced test results here.
As for the MCC003 you have, same thing: contact the person who is responsible for the media. You can burn MCC003 at 12x in GSA-4163B. If you still doubt that, please search.