CompactFlash is the worlds most popular removable mass storage device. The CompactFlash card is about the size of a matchbook and weighs only half an ounce. CompactFlash technology has resulted in the introduction of a new class of advanced, small, lightweight, low-power mobile products, including digital cameras, digital music players, desktop computers, handheld PCs (HPCs), personal communicators, Palm PCs, Auto PCs, digital voice recorders and photo printers.