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Ultra® II SD™ Card
Product Question  
Memory Cards What can causes corruption and how do I recover my data?  
Answer ID: 37 Created: 08/04/2004     Updated: 08/04/2004
For Products: All Flash Memory
All Industrial Memory Cards
All USB Drives
 
Category(s): Audio Player
Computer Only
Digital Still
Digital Video
OEM
Other
PDA
Projector
Smartphone
TV
 
 
Answer
Symptoms:
Card works in camera but not the reader
Card shows corrupt characters
Card shows used capacity but no files are on it
Card locks camera up
Card does not work in device while other compatible cards do
Card can not be written to or erased
Reader or adapter crashes when card is inserted but works fine with other cards
Card show card error in camera
Card says it needs to be formatted when inserted in device or reader
Shows less available pictures than normal and no pictures on card
Card shows bad sectors in scandisk
Camera can not be turned off with card inserted
Card shows wrong capacity when formatting
 
 
Cause:
Taking pictures too fast so the camera cannot finish writing them before the next one is taken
Turning off the camera while it is still saving information
Removing the card while the camera is still saving data to it
Taking pictures with weak batteries
Large static charges to the card
Sitting the cards on or near strong magnetic sources
Removing the card from the reader while you have files that are on the card open
Removing the card from the reader while it is still copying files to the hard drive
On a Mac, removing the card without first trashing the icon
On NT, removing the card without first running safe swap
On ME and win 2000, removing the card without first stopping it.
File corruption is caused by many things and our memory cards are less susceptible than regular hard drives or other media with moving parts.
 
 
Recovery
To recover the pictures you can try the following

1. File recovery software will work in some cases. We recommend Rescue Pro http://www.lc-tech.com/rescuepro.htm
2. Locate a disk recovery service in your area (query on the internet for data or disk recovery) or contact LC technologies http://www.lc-tech.com/rescuepro.htm they provide discounts for STEK customers on STEK cards
3. Run Scandisk against the card

STEK does not do file recovery.

To make the card usable again
Format the card in the device using it
Or
Place the card in a reader
Right click on the drive letter
Choose format
Full format with no label