Information about Memory Cards
1. Secure Digital (SD) Card
The SD card is based on the older MultiMediaCard (MMC). Both cards
can be read by the same card reader. Therefore, if a digital photo frame
supports SD, it will also support MMC. In 2005, SD/MMC had a market
share of over 40% in the digital camera market. Now it is the most
widely used card. The manager of one company told me that the market
share of SD is now at about 70%. Many digital camera manufacturers use
SD in their products, such as Nikon, Canon, Kodak, Panasonic, Konica
Minolta or Casio.
2. Compact Flash (CF) Card
The CF card is an older card, which is much bigger than newer ones.
Therefore, it is unsuitable for new and small digital photo cameras.
However, it is still used, especially in professional cameras.
3. Memory Stick (MS)
MS is Sony's memory card. It is used by Sony and Sony Ericsson
devices. Due to the support of Sony, MS has a considerable market share.
4. Multi Media Card (MMC)
MMC can be considered as predecessor of SD card. As any device, which
supports SD cards can also read MMC it can be considered as a SD card.
5. Smart Media (SM)
SM was very popular for digital photo cameras. In 2001 SM reached a
market share of about 50%. Noteably Fuji and Olympus cameras used SM.
However, the maximum capacity of SM is 128MB, which was quickly too
small for digital cameras. In the end, Fuji and Olympus switched to xD
6. xD-Picture Card
Due to the storage limit of SM, both Fuji and Olympus switched to xD
card in 2002. xD cards are not as widely supported as SD and only used
by Fuji and Olympus. Due to their higher costs, they have not become as
popular as SD.
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