My lite-on is dieing so someone gave me an old GMA-4020B drive.
the core is COR0
J003.11.30.REV DVD-RW GMA-4020B COPYRIGHT © 2001,2002,HITACHI,LTD.
the main is A105 which i have not found on rpc1 or else were so i figured it would contribute it in case any collectors wanted it.
File contains DOS, WINDOWS MAIN/CORE, WINDOWS MAIN ONLY
For those who know my work… this firmware was different then the other ones i have encountered so i will update my code and software soon.