Sony’s’ proprietary storage media. Available in capacities up to 256 MB. It is extremely compact and only four grams in weight, a Sony Memory Stick (MS) offers outstanding data storage. The Sony Memory Stick is Guaranteed to work with every Sony device on the market now, with the Memory Stick PRO being supported more and more for higher capacities.
Memory Stick Pro - The year 2003 upgrade to Sony's Memory Stick flash cards. The new MS Pro cards are available in 256MB, 512MB and 1GB capacities and offer faster read/write times. All of Sony's digicams made in 2003 or after can use MS Pro cards.