Memory Card Types

As the years go by, high-tech manufacturers figure out new and better ways to fit more pictures on smaller cards. If you were the first on your block to buy a digital camera, it probably used CompactFlash or SmartMedia cards, which now look gargantuan compared to, say, the xD-Picture Card. CompactFlash cards, on the other hand, have stayed the same size but greatly increased their capacity.

When comparing memory card formats, look at price per megabyte, availability, and what works with your other digital gear. The following list will help you compare the currently available card types.

CompactFlash cards are rugged, inexpensive, and easy to handle. You can buy them in capacities all the way up to 8 GB (translation: hundreds upon hundreds of pictures). Pro: Readily available; inexpensive; wide selection. Con: They're physically the largest of any memory card format, which dictates a bigger camera. A name brand 512 MB CompactFlash card costs less than $45.

Sony's Memory Stick format is interchangeable among all of its cameras, camcorders, and laptops. Memory Sticks are great if you're already knee-deep in Sony equipment, but few other companies tolerate them. Pro: Works with most Sony digital gadgets. Cons: Works primarily with Sony gear; maximum size is 256 MB. A 128 MB Memory Stick starts at about $35, depending on the brand (Sony's own are the most expensive).

The Memory Stick Pro Sony's newer memory card, is the same size as the traditional Memory Stick but holds much more. Sony's recent digital cameras accept both Pro and older Memory Sticksbut the Pro cards don't work in older cameras. As of this writing, you can buy Pro sticks in capacities like 512 MB ($45), 1 GB (about $65), 2 GB ($115), and 4 GB ($300).

Secure Digital (SD) cards are no bigger than postage stamps, which is why you also find them in Palm organizers and MP3 players. In fact, you can pull this tiny card from your camera and insert it into many palmtops to view your pictures. Pro: Very small, perfect for subcompact cameras. Con: None, really, unless you're prone to losing small objects. 1 GB cards are now around $65 and 2 GB models are in the $100 range.

The xD-Picture Card, tinier still, is a proprietary format for recent Fuji camera and Olympus camera models (see figure). Its dimensions are so inconveniently small that the manual warns that "they can be accidentally swallowed by small children." Pro: Some cool cameras accept them. Con: Relatively expensive compared to other memory cards (256 MB = $35, 512 MB = $55, 1 GB = $75). Incompatible with cameras from other companies. Also incompatible with the memory card slots in most printers, card readers, television front panels, and so on.

The tiny Secure Digital card (middle) is gaining popularity because you can use it in both your digicam and palmtop. The even tinier XD-Picture Card (left) works only with Fuji and Olympus cameras. The larger CompactFlash card is still the most common (especially in larger cameras).