I use windows live photo gallery for all my pictures and videos. The other day I decided to back-up my pictures and copied them to a couple memory cards (I actually used memory cards I had from previous cell phones- Thought I would add that info in case it made any difference) Anyway, I got through backing-up 3/4 of my pictures and ran out of time and had to quit. Now when I go back into windows live photo gallery- I cannot open/see any of the pictures I copied onto memory cards and get the message "Photo gallery can't open this photo or image. The file may be unsupported, damaged or corrupted." But I CAN see all the photos I have yet to save to memory cards.