Philips external spd3600cc

I just purchased a philips external spd3600cc from frys. I am almost positive it is a liteon rebadge. I successfully used LtnRPC to make it region free. But the bitset utility from liteon doesn’t work with it, nor does nero cd-dvd speed bitsetting utility, nor imgburn, nor dvdinfopro. I did successfully backup the flash and the EEPROM using codeguys’ Flash Utility for LiteOn Based Optical Drives. Current philips firmware is KP01. Does anyone know what drive is inside so I can crossflash it to a liteon and have bitsetting?? thanks