At the Triple-I conference 2008 we gave this presentation about our research work in QR Codes. Here you can see the slides:
Further here is a short part of the presentation as live-stream:
Digitale Lehre an und rund um der Technischen Universität Graz
Eine Antwort auf „[presentation] What’s the Power behind 2D Barcodes? Are they the Foundation of the Revival of Print Media?“