The quality of Spark memory cards is similar to that of Panasonic memory cards. I say this not because both Spark and Panasonic memory cards are Japanese brands, but because some of the technicians of Spark memory cards used to be Panasonic memory cards. Stuck. The quality of Spark's memory card itself is high enough, but this is not the key. The most important thing about the memory card is its compatibility with the equipment used. Spark's memory cards are generally tested and debugged according to the equipment used, in order to maximize the performance and performance of the memory card. Maximize service life