I'd recommend the LiteOn LH-20A1H. It's got LightScribe and great scanning capabilities in addition to a ton of extra features, like SmartBurn, HyperTuning and OverSpeed. LiteOn is really good about firmware support in my experience. C0deKing is also really good about patching said firmwares with FastBurn and Enhanced OverSpeed quickly.
I've been rather satisfied with the burn quality on both high-grade and low-grade media. Pick one up; you won't be let down.