Some HP 740 use LG 4166 inside... HP 740 were not sold has LightScribe burners by HP. You can flash a HP 740 to 4166 with the 4166 1.01 licked firmware. This was already done here.
BTW, everything using LG 4164 or LG 4166 inside is a potential LightScribe burner.
Search for HP 740 for more info.