Saturday, I took pictures of a Quincinera party. I had about 280 pictures on my Sandisk Extreme III 4gb card. Yesterday, I tried to download all my pictures to my PC. It can only download 63 pictures. WTF!!! Thinking to myself, I'm screwed, how could this happen. I tried using the Rescue Pro software that came with my CF card but that didn't work. So I called SanDisk Tech Support, they referred me to LC Technology www.lc-tech.com , I emailed their tech support, couldn't talk to anybody since it was 10pm. Tech support emailed me back and suggested that I download the demo of the PhotoRecovery software to see if I could preview the images. After I got home from work, I did and lo and behold I see my pictures!!! Then I bought the full version for $39.95, I was able to save and download all the pictures that I took. I really could not explain as to why in the beginning I could only see 63 pictures. I don't know what happened, I preview my pictures after I take them. It just doesn't make sense. Is my CF card going bad? I format my card everytime I download my images. Anyway I highly recommend this software, it is a powerful software. Well worth the $39.95. Saved me a lot of grief.