I ran into something unusual the other day, that I have never run into before. Usually when you use an SD card or Flash card to store your pictures from the camera after you have taken them, the Canon EOS system creates 2 folders on your flash card. A DCIM and a MISC folder. Your pictures are usually stored in the DCIM folder. Not sure what's in the MISC folder because when I decide to look, it's always empty . The DCIM folder usually has a sub-folder that I think you can rename using your camera, but I usually set my camera to "Continuous numbering" and forget about it. This sub-folder actually has all your images and you have to click on it to see the thumbnails on your monitor. I don't usually pay attention to all this and just click on any folder until I can see the thumbnails on my monitor. The other day I was in Bridge in Photoshop CS, when I noticed that there were 2 sub-folders a 101 and a 102. For some reason, the system split all the pictures I had taken that day into 2 sub folders ? The reason I bring this up, is because my Editing software package AcdSee vs 8, had a hell of a time trying to import the images into the "Picture" folder on my computer. I didn't have any problems importing with Photoshop CS though, but I did run into other issues which I will explain later. To make things clear there were about 1700 images on the 64GB SD card. Half of them were stored in RAW with an identical copy stored in Medium JPEG. I'm not sure if the size of the images caused the system to split into 2 folders, but I'm guessing this is what happened ? I'm still investigating, but like I said AcdSee my editing software package, screwed everything up mixing images from sub-folders 101 into 102 and vise versa. it got really confusing while trying to edit. After editing the images I needed to edit, AcdSee could not decide what to do with the images it had imported so it just discarded them ? I had to redo the entire Import function which took about 1/ 2 hour due to the number of images on the SD card ? I'm really not sure what happened, maybe I fat-fingered something, but this has never happened to me before ? The reason I used AcdSee instead of PS to import my pictures in the first place is because it handles RAW data a lot better. I can click on image whether it's RAW or JPEG and the software opens it up and you can begin editing immediately. With Photoshop you have to go through "Camera RAW" which can get very tedious if you have a lot of images. There got to be a better way ???