Bob, If you're looking at U.S. money, they are slowly changing (or have already done so by now) the overall look. The U.S. engravers have made the portraits larger in size, added some minute laser inscriptions, and are now introducing a wide color band through some portion of the paper to further foil counterfeiters, and many money-changing machines and casino slot machines have had to be updated as these new bills begin to circulate. So that would imply that Openbook might be impacted by this migration into colors, and if you have an older version of Openbook (7 or earlier) you might indeed have some issues with Buckscan. Buckscan consists of a set of images stored in memory, of key portions of various paper-money denominations that are used to do a comparison with the image you scan in. The better the correlation, the more likely it is that Buckscan will recognize the money. If the bill is worn, wrinkled, folded, or otherwise marked in those key areas, recognition will be negatively impacted. Same holds for any changes made by the engravers to foil counterfeiting. The key areas are the corners of the U.S. bills, as this is where the denomination ($1, $5, $10, etc.) is engraved, front and back. So the images stored in Buckscan are not images of the entire front and rear, just the corners. So long story short, if you don't have the latest Openbook, that could be one problem. If you do, it could also be due to the quality or revision of the bill you're scanning. You might want to check with Freedom Scientific to see if they have any updates to Buckscan. Dave ----- Original Message ----- From: onwardbob To: jfw@xxxxxxxxxxxxx Sent: Thursday, July 02, 2009 11:37 Subject: open book I know OPEN BOOK isn't perfect, but does anyone have any suggestions regarding the buck scan feature. Most of the time it won't even read the bill in question, and its incorrect so often, I don't trust it. help, Bob