Robert Good guess. Yes, it's the existing photos I saved on my hard drive using windows 7, which uses the same file name the camera assigned. I transfer them same day their taken. When I use a different memory card, the sequence starts over, duplic...
Dear Skirball: Thanks for the assurance that windows will apply a suffix on the file name of a duplicate.However, when I copy and paste from the memory card in the camera to my pictures, I get a message that this is a duplicate, and gives me a choice...