I just answer your question but i am not very comfirm. Becasue i use auto 1 for many years in many machines. I just remeber that auto 1 is for movie and auto 2 is for hdtv program. And others --->黑色校正?? 進階對比度增強?? 白色清晰度?? 動態色彩?? I just use the low setting or don't use.