Problems with LG DRD8160B and DVD-5-Videos


first of all: sorry for my english and any mistake :wink:

But now the problem:

I have an LG DRD8160B with firmware 1.01. But the DVD-ROM can’t recocnize/read DVD-5-Videos like DVDs from Warner Home Video ( e.g. Lethal Weapon 1-4 (old version), Batman, Payback, Last Boy Scout … ). It says “No media found”

Can anyone help me?