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As for deleting from the disk while in the camera the way the instructor explained it was comparing it to the computer and how when you add and delete files it leaves spaces on the HD. We can defrag the computer to fix this, but you cannot defrag a card. He convinced me at the time



He is flat out wrong and doesn't know what he is talking about. Yes when you delete files, it does create spaces but when you download the photos onto the computer and then reformat the card it does fix those spaces. And you can defrag a CF card. I have reformatted and defraged CF cards on the computer. After I reformat the CF card on the computer, then I format in the camera. You have to be careful and NOT change the file structure. It is ok to delete photos from the CF card while in the camera.

David Ramey Photography