Lexar MSDP4GB-40-664 4GB Platinum II Memory Stick Pro Duo Works in Digital Cameras, MP3 Players, Camcorders and more! A built-in erasure-prevention switch prevents you from accidentally deleting data 100% camera compatibility guaranteed - Fits all cameras that accept this card format Includes MagicGate copyright protection technology for both copyright-protected content and personal content and data Compatible with standard-size Memory Stick media by using the included adapter