Comment What about damaged QR codes? (Score 3, Insightful) 206
Hmm, just did some reading; apparently they can handle 30% loss of surface area. Compare that to UPC being able to lose 99.99% of surface area (at the proper angle). I always see UPC barcodes torn, crumpled, inked-over, because they're usually on the bottom of a box or bag. They'll need to splat these QR codes on multiple sides of the packaging to be safe.