I played around -ok- beheld with admiration, my friend's d700 today. I am considering converting fully and moving over to Nikon ... she was nice enough to allow me to test her gear. I came home with my memory card excited to see the images on the big screen - ONLY - there were no images on the LCD when I placed the card in my 40D. So ... is this because pictures were taken with Nikon and now the memory card is in a Canon? I Googled this first and searched past forums - if the answer is imbedded past ten pages of search results, I apologize I need to know if I should use some type of recovery software or if this is just a issue unresolvable using my Canon. I do not have a separate card reader at this time. THANKS FRIENDS!!!