Since MCC02RG20 has been missing in the previous test threads, here is one MCC02RG20 provided by Taroth.
Mitsubishi 4x DVD-R: MCC01RG20 (I had at least one for GSA-5163D test)
Mitsubishi 8x DVD-R: MCC02RG20 (Taroth report)
Mitsubishi 16x DVD-R: MCC03RG20 (field testers of GSA-4163B had one per each: 5 min. 19. write time)