Have a look a my thread:http://www.notebookforums.com/showthread.php?t=119484
The Toshiba drive still works like a charm, I have no hesitation to recommend it and as Ladron proves, this fits the 7700 as well.
However, I'm a bit disappointed with lightscribe in general, burning an images takes ages (almost half an hour) and the contrast is not very high really. Also, blanks are not easy to get and still quite expensive.
NEC invented Labelflash, no idea if that's the better system, but for sure it's quicker and the blue background to me looks better than the gold one.
I guess Lightscribe doesn't really live up to its potential so far.