[Jay Curlee]"Has anyone run into a situation where the EX-1 camera has created duplicate identical file names for clips which are different?"
[Jay Curlee]"What causes this issue?"
I'm not sure. My original EX1 did that and I know I didn't hit "RESET ALL" in the menu to make it happen. Early firmware glitch perhaps? Maybe it's time to send your camera in for the upgrade as long as you don't mind losing 2 minutes of recording time on a 16G card.