LG add HL-DT-ST DVDRAM_GSA-4082N,DVDRAM GSA-4168B

http://www.bha.co.jp/download/win_gold8/updater.html

does anyone know the drives call DVDRAM_GSA-4082N,DVDRAM GSA-4168B
the differance between the GSA-4167B? :bow: