SD cards are useless for long term storage, they last maybe 5 years: http://www.datarecoveryspecialists.co.uk/blog/what-is-the-life-expectancy-of-an-sd-card htt

SD cards are useless for long term storage, they last maybe 5 years: http://www.datarecoveryspecialists.co.uk/blog/what-is-the-life-expectancy-of-an-sd-card http://www.datarecoveryspecialists.co.uk/blog/what-is-the-li... They depend on holding electrons within cells, and over time the electrons leak out.