We started out on RAW+JPEG Fine mode, and found our 4G CF card filled to capacity in 40 shots. With just JPEG Fine, the card accommodated around 100 images. We later shifted to the Transcend CompactFlash 600X 16GB card. The processing was a bit faster with this card, especially in the Live mode. Since this camera is going to be used a lot for video as well, it is better to get the largest fastest card possible. In fact, this camera gives you the option of having a second SD card and record video in multiple formats.