I have an eMachine T5010. The original hitachi-LG gsa-4163B wouldn't write dual layer dvd's, it wrote single layers & cd's great. If I tried to write a dual layer it just said check for bad media (I was using Verbatim) so I assume the media was good. The firmware version for this burner is a100. There are numerous firmware & i driver update available for this burner. eMachines sent me a replacement burner samsung TS-H552D it shows firmware GA-o1. I am assuming this is a proprietary firmware. My question is which is the better burner & could the dual layer problem be fixed by driver or firmware updates?