Pre-PMA 2004: SanDisk has today introduced the SanDisk Extreme and SanDisk Ultra II versions of Memory Stick PRO, a new line of premium, high-performance digital film cards targeted at advanced and professional photographers. Similar to the Extreme and Ultra II CompactFlash and SD product families introduced earlier by SanDisk, the two new Memory Stick PRO cards deliver a minimum write speed of 9 megabytes (MB) per second and minimum read speed of 10MB a second, making them the fastest Memory Stick PRO cards in the world. The cards, which will start shipping at the end of this month, 256MB to 1GB and priced from $119.99 to $679.99