This is how lightscribe works:
Once your dvd is finished, take it out of the drive, flip it over, and put it back in the same drive. The drive will sense that it is on the side to be enscribed. Using software included, you make a label thats is monochrome. The front side of the dvd has a chemical coating that reacts to light produced by the laser. The laser shoots the image onto the disk and a chemical reaction occurs creating the image. A pretty simple concept when you think about it.
This does require a special kind of disk, btw. I'm inclined to think that any drive is capable of this with the right software and lightscribe disk.