DVR985/172 in year 2007



Hello, i need to know which is the last firmware and which was the first firmware my dvd recorded had. It was manufactured on August 2002 in Hungary, model dvdr985/172 (? supossed not to be sold in USA), i bought it in El Paso Texas. I have a lot of ‘error disc’ and ‘warning disc’ and strange codes, i upgraded the firmware to get 6 hours of recording, great mistake,
right now it can’t record sony media neither +r and +rw

thank you by your support and sorry by my english…