Does anyone know if the LG 4120 can be upped to the 4160 via firmware? I was reading a review for the 4160 http://www.cdrinfo.com/Sections/Reviews/Specific.aspx?ArticleId=11079
and in the article it states that the PCB and the laser in the two drives are identical. So, I figure that maybe a firmware change can upgrade my 4120 to the 4160. Anyone?