It's doing it again.
OK, I know what you're talking about now. It's transfer rate tests!
I just ran Nero CD-DVD Speed on both drives and the Lite-On shows higher speeds, lower seek times and higher burst rate by quite a bit. Although, the CPU usages are kinda strange:
Asus DVD-E616P3 (1.07 firmware)
1X - 3%
2X - 6%
4X - 15%
8X - 25%
Lite-On DVD SOHD-16P9S (FS09 firmware)
1X - 0%
2X - 7%
4X - 3%
8X - 61% (?)
Does this mean anything to anybody? The only thing I know is if I'm playing a CD, I'll play it in the Asus drive instead of the Lite-On for now.