Wikipedia has some more information on it, but for realistically printable QR codes (version 10), you can probably store about a hundred bytes. Alternatively y

Wikipedia has some more information on it, but for realistically printable QR codes (version 10), you can probably store about a hundred bytes. Alternatively you could use Video QR: http://stephendnicholas.com/archives/310 http://stephendnicholas.com/archives/310 ;)