After 2 holidays and 2 total data loss of the cards I will not continue to use this. Did this used in a Nikon Coolpix P300 and a Panasonic HD camcorder. In both cases, the writing suddenly failed on the map, then the data on the card were corrupt - the card could only be used to reformat again. I can only advise against the purchase of this card.
After changing to Panasonic and Samsung SDHC card, there were no more problems.