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Flash Memory Card FAQs

 
Updated 3/28/2011 by SuperMediaStore Staff
1. What is a Memory Card? How do memory cards work?
 
A memory card is a form of solid state storage device, with no moving parts; it functions electronically instead of mechanically. A memory card is a non-volatile computer memory data storage device used with electronic devices where data can be electrically erased and reprogrammed. They are small, do not require power and are ideal for portable devices. A few examples of electronics that use memory cards include; digital cameras, laptop computers, mobile telephones, music players, televisions, video game consoles, and other electronics. Due to its high ability to store data without power, small form factor, re-recordability, and rugged environmental specifications, memory cards are extremely useful.

2. What is the difference between various memory card formats?
 
There are many different flash memory cards on the market. A few examples of Memory Cards include; SD cards, miniSD cards, microSD cards, SDHC cards, Compact Flash cards, memory sticks, Memory Stick Pro, Memory Stick Pro Duo, multimedia cards, smartmedia cards and XD cards. With such a long list of different flash memory card formats to choose from, it may be confusing to find the right memory card.

Before you go out to purchase a memory card, confirm the format(s) supported by your digital devices prior to purchase. For example, your digital camera may only take an XD card (make sure by referring to the manufacturer of the digital device), do not go out and purchase an SD card. The Memory Stick, Memory Stick Pro and Memory Stick Duo are memory cards that work with only a few host devices, primarily with Sony brands.
 


3. I just purchased a memory card. Why doesn’t my memory card work?
 
It is advised that you format the new memory card in the electronic device before use. Refer to the instruction manual of the electronic device to learn how to format your memory card.

4. How do I use my memory card? What are handling instructions to use the memory card?
 
It is advised for use of all memory cards to not remove them from devices while data is being processed. In other words, power off the host device prior to removing the memory card. Since flash memory is sensitive to power loss, it is recommended that you remove the memory card in devices that are low on batteries. Data on the memory card cards may be corrupted by sudden power loss. To reduce chances of electrostatic discharge (ESD) avoid touching the metal connectors of memory cards, especially those of the Secure Digital cards, Smart Media cards and XD cards.


5. Why are some of my files missing on my memory card? Why is some of my data corrupted on my memory card?
 
After uploading photos onto your computer, you may find that some of the photos are corrupted or missing. The memory card may be defective or a few of the sectors on the card may have been corrupted by sudden power loss. First try to format the card to solve data corruption issues; this could be done either on the devices (digital camera, mp3 player, pda) or on a computer. If this still does not solve the data corruption problem, you should run hard disk maintenance (such as Scandisk on PC's) on your digital media card. If problems still occur, contact the manufacturer of the memory card.


6. My card is no longer recognized by my digital camera/memory card reader. Is something wrong with my memory card?
 
First, make sure that your card is inserted into the device properly; ensure that the pins of the card are facing the plastic in the card port. If the card is inserted properly and is still not recognized on the host devices, it is possible that the memory card has become defective over time. Attempt to format the memory card; this could be done either on the devices (digital camera, mp3 player, pda) or on a computer. If formatting the card is unsuccessful please contact the memory card manufacturer.


7. Can I retrieve lost data from my memory card?
 
You can use hard disk repair programs (Norton Disk Doctor, Scandisk and Disk First Aid) to recover data fragments from the corrupted memory card. Additionally, there are third party programs and data recovery services. Typically, data cannot be recovered if the memory card is not recognized on a device.


8. Why does my memory card show less capacity than listed?
 
There are two main reasons why there is a discr

 

 

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