Yes. 2.xn where x is the OEM, and n the firmware revision, someone got this info from NEC in the past fay days. This 2.36 seems to be the same as NEC 2510 f/w 2.16, same strategies are dumped from those firmwares (thanks to Liggy@cdfreaks). I don't believe there's +R/+RW bitsetting, but perhaps a forced DVD+R DL bitsetting as 2.06 ?
Philips DVDR1668@BenQ DW1655 BCIB
BenQ DW1620 B7W9
LG GSA-4166B (dead)
NEC ND-2510A (retired)