Is there a difference between standard speed and high speed memory cards?
High speed memory cards use parts that reduce the time it takes to read and write images to the memory chips. If you have a Digital SLR camera, its more powerful computer chip can write to the card faster. This allows the camera to take more images without slowing down to wait for the card. In the digital point and shoot cameras the internal computer chip can’t transfer images to the memory card as fast, so a high speed memory card will only help a little.