As part of research for a book on vintage port, I am taking many photos of menus and pages of cellar books. Many. The camera is a DSC-W180, which names files DSC0nnnn.JPG (eg, DSC01234.JPG). Alas, the camera cant count past 9999, it then going back to 1. Whoops. Please, is it easy to add a button/command/keystroke somewhere in or near the Finder that does something like the following pseudocode (where s represent tabbed indentation): For All Selected Files If FileName is of the format DSC0nnnn.JPG Then If FileCreationDate is >= 21:59 on Sun 26 Sept 2010 Then Rename file to DSC1nnnn.JPG. End If End If End For All ? OSX 10.6.4; iMac 5,2; 1.83Ghz. Xcode 3.2.4 is installed. Thank you kindly.