Thought this may be of interest to some of you out there. I bought a Transcend 4GB SD card recently for my Nikon D50 to see if I could get it to work. There's some small print on the Nikon website, which I can't find at the moment, which says that you can go up to 4Gb with certain models if you format the cards as Fat32. The reading on the LED screen for normal sized images read 2.1k, but with the k above the one. It took me a moment to realize what this meant. In RAW format I can get somewhere in the region of 535 images, which is what I could get on my old 1Gb card, but using the normal image size setting.