Features:

• Write Speed - 32Mbps When combined with optimized Memory Stick PRO format-compatible devices

Editor Reviews:

Product Description:
4GB memory capacity * supports read and write speeds of up to 32 Mbps * designed to operate with high-def AVCHD recording devices * some memory required for system management * SDMI-compliant MagicGate encryption technology *

Rating : - Perfect size, perfect price
great memory stick for the price. with the 8gb being almost the same price as the 4gb, it's a no brainer as to which to buy. speed wise, for a psp, this runs just as well as the faster memory stick since PSP aren't the fastest loading machine on the market. For photo, i would recommend a fast chip if you're all nuts into taking huge pictures super fast. This works great for the average picture takers