I had a problem with my Sandisk Ultra II 1G card. My wife took it to a pharmacy to have pictures developed. (My first mistake not burning a CD instead). ANyway when she put it in their machine they machine started reading the disk and their machine crashed. SHe asked for help and they tried 2 other machines and the disk became unreadable. She brought the disk home and I put it in my PC and it says the disk is not formatted. So I put the disk in the D50 and format the disk. The carea reports that its formatted but when I go to take a picture I have a CHS error. According to the manual the CSH error means damaged disk or unreadable. So now I am out of a 1G disk. I purchased a new 2G chip because that all they had in stock the night before our vacation. Now battling with the pharmacy to get me a new disk because they destroyed it. THhey had my wife call SanDisk and they said you have to format it and we told them we did and they say the camera does it wrong. Then she called Nikon. They said the max size memory card is 512K and anything higher they will not support. I was sold the 1G card when I bought the camera. The 2G card reads fine now. Am I looking for trouble in a few months for using a 2G card? If you shoot in Raw and use a 512K card will severely limit how many pics can me stored on the card.