What are signs my SD card is corrupted?

Technology
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  1. Digital cameras or other compatible devices fail to recognize the card.
  2. Card readers and desktops fail to list the card as a folder you can read.
  3. Files on the card appear distorted or display an error when opened.
  4. The card can be viewed as a folder, but not all of its files appear.
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What is corrupted?

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A corrupted SD card doesn’t let you access files from it. The files may get disappear, the card may not open or isn’t recognized by your computer.