Memory cards

There are several different types of memory for cameras and if you buy the wrong one it won't work in your digital camera.
SD cards are compatible with MMC cards. The main difference between them is that SD cards can be protected and work faster than MMC. SDHC are the same, but have higher capacity and will not work in all cameras. Check the technical specifiation to see whether they will work with your choice.


CF cards (Compactflash) have been around for a while, but are still popular and the newer ones are as fast as any other type of card.

Sony cameras usually use their own type of card called Memory Stick. This comes in a variety of shapes and sizes, so check the specification carefully.

XD card is the newest. It was jointly deveoped by Olympus and Fuji and is the smallest card in common use. There are two types H & M, modern cameras can use either, but once again check carefully.

The last format is Smartmedia, this is just about obsolete. If you buy a camera that requires Smartmedia, for example on eBay!. It's almostly certainly old stock.