Sony 4GB Memory Stick PRO DUO MSPD (Mark 2) Memory Card with Card Reader & Everything But Stromboli MicroFiber Contact Cleaning Cloth Memory Card Type: Sony Memory Stick PRO DUO (Mark 2) Memory Card Capacity: 4GB Write Speed: 32Mbps (minimum)(When combined with optimized Memory Stick PRO format-compatible devices) Memory Card Reader Everything But Stromboli MicroFiber Contact Cleaning Cloth