I've two Song digicam and they are in the same file naming, i.e. DSC0xxxxx.jpg. If I import the pictures from them to iPhoto, the iPhoto will ask me for the duplicating pictures. But actually, they are same as file name only, not the picture itself. How can I manage those pictures in order to differentiate them as two different pictures? And I cannot find any ways to change the file naming convention in my digicam. Thanks