'taint nothing on mine...
yea, it's got a barcode, but I was a bad boy one day and saw some dirt on the magnetic strip.
So, being the good citizen that I am, I wiped the dirt off.
.
.
.
.
..
with a magnet out of a hard drive...
Got tugged by the highway patrol about 6 months after that, and darn darn darn... his little reader didn't work on it...

EDIT>
Doh!! thats an optical barcode they speak of kinda like the ones UPS uses? ..I toopid..
My DL has a mag strip at the top and a conventional barcode at the bottom..