So this is something that has bothered me for a long time. I have the same problem in other applications too. I recently took a trip out west and only used one of my two cameras. I filled three memory card with photos. When I import them they are all scrambled. I have tied the obvious things like arrange by date, file name, ect. None of that gets them in proper chronological order. Now why is this? 

If i make three separate folders, one for each memory card then in each folder they are fine but put them all in the same project and they get scrambled. Some even have identical names! Am I doing something wrong with importing? I even tried Olympus now software and same problem.