Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Long term test

I have had this card for about 18 months without any trouble. I have used it to take HD movies, as a thumb drive in a reader, and hundreds of still pics. The Lock switch has been infallable; I set it before handing it to friends to offload files, so it has been tested a couple dozen times. It is also noticibly faster than my older 2Gb class 1 (?) and smaller cards, particularly in taking movies and large file transfers. I also enjoy reminding my technodweeb friends I paid half what they did for their "big-brand" cards.