Not all flash memory cards are created alike. Nowhere is this more evident than with the new SanDisk Extreme Pro CompactFlash Card. Available in 16GB to 64GB capacities, this card promises, and delivers, on extreme: Armed with SanDisk's rearchitected controller, this card can achieve up to 90 megabytes per second read/write performance in a digital SLR that supports UDMA (mode 6).

I took this card out for several shoots, and have to say I've been impressed with how it handles. I didn't gauge its "performance" with regard to its rated write speed as compared with other, more lowly and less pricey cards; rather, the proof of this card's worth lies in how the card handles in the field.

As a photographer, I never want to miss the shot. You know the one -- whether it's an athlete's elation at a successfully completed routine, a gymnast's gravity-defying midair flip, or a couple's first kiss at a wedding -- those are the shots that burst-modes were made for. Unfortunately, even with SLRs that boast fast frames-per-second, well, those superfast ratings have been for shooting JPEG, not RAW.

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