I shoot raw/jpg. opened the raw file in Digital Photo professional and transferred a tiff to photoshop where I saved I worked on it and saved it as a psd. when I tried to open the tiff file again I received an error message saying I didn't have permission. when I went back to open it again it was gone. when I went back to the flash card all my raw files where there except this one. I only have the jpg backup. The raw and the tiff disappeared. I've tried two different recovery programs which recover everything from months ago up to the present except this one file. Does anyone have any idea on how to get that raw back and what may have happened? I've searched all drives in my computer and the flash card. one recovery program shows the raw file sitting on the flash card but doesn't get it. any ideas? unfortunately this is the one the client really, really likes.