Do you intend to use the lightscribe labeling? If not I'd disable the service and use Imgburn. Otherwise I'd pick one or the other to be active at any one time. Esp. if you have AutoPlay on you could end up with 2 programs trying to control the optical drive. Could end up with discs hanging at the "finalizing disc" stage at the very end of burning.
I think I've had 3 lightscribe burners so far and I've never done a lightscribe label. Too expensive when I can just write on it with a Sharpie.
But if you do use the laser labeling post how it goes.