The sandisk 16gb 120mbs extreme compact flash cards are well regarded in the photographic community for their quality durability and speed shock and vibration resistant and operable in extreme temperatures these cards wont let you down when you need them most and your data will be much more secure against loss or corruption when compared to cheaper cards whats more the cards high read speed 120mbsec and write speed 60mbsec better optimises your camera for burst shooting recording