Sony - 4GB Memory Stick PRO

With increased durability, higher data transfer speeds, and compatibility with a wide selection of Memory Stick PRO devices currently available, the new 4GB Memory Stick PRO (High Speed) media will be a valuable tool for users needing to store and transfer large quantities of digital content, including high-resolution digital photos and video clips.
The 4GB Memory Stick PRO (High Speed) supports faster read and write speeds of up to 80Mbps (10MB/s) for quick copying of files to and from computers. Also this media has a format specified minimum write speed of 15 Mbps to ensure high-quality, real-time recording of moving images. It also features increased durability with a standard operating temperature range.