Neither zbarimg from zbar-tools (Version: 0.10+doc-4ubuntu2) nor ZXing's online decoder nor Google Goggles could decode the scan of the QR code on the left. On the right is the original, which zbarimg and zxing could decode. Visually, it appears to be a clean scan, so I suspect there remains room for machine vision algorithmic improvements to the programs.
The encoded data are 6825 decimal digits.
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