Yes, that is an actual Lite-On drive with a MediaTek chipset, not a rebadge.
The exact difference between -08 and -09 drives is unclear at this point, but both should be real Lite-Ons.
The Lite-On 20Ax/20A4x series of drives were great burners which can not be replaced by any current drives. I would keep them for burning only, but use the newer drive for reading, ripping, and scanning (and burning too).
Patched firmware for the 24x drives isn't available yet, but when it is, you'll be able to find it here: