I buyed the LG BH1LS30 last week and burned with Nero 10 1 CD, 1 DVD-R and 1 DVD-R DL. I also burned label sites with LightScribe. Everything works very fine and quick. But the buffer level was 0% or 4%. Is that the Firmware problem or what? I never saw that. Firmware of my LG is 1.00 and there is no newer version on the LG website. My OS is Windows 7 Ultimate, 64bit.
I don’t think you have anything to worry about. It appears to be more a problem with programs reporting the buffer level than the buffer itself. I also get good burns with DVD media, but the burn graphs with DVD media do not show a buffer level, while BD-R burns show a normal-looking buffer level.