This is the first failure of a SD card I had. Card was purchased mid November 2014 used in a Samsung tablet and occupies about 50% of the storage space. Suddenly, the card could no longer be described. A deletion or reformatting also failed, since everything is done here apparently also on the write function. Fortunately, I was able to continue to read the map and thus save the data. This proves, however, as a problem because I would not like to return with all the data for complaint the map! Will take time with the vendor or Amazon as senders contact what he means so !?
Update 30.12.2014: Amazon was very accommodating and has (as emphasized: exceptional) where a credit. For this purpose, at least 5 Stars. Complaining cards would always destroyed after Amazon's instructions! Despite these assurances, however, I would always refrain from returning.
