In an area where prices are constantly falling with the same capacity, it is important not to overpay a map that will be worth half a year. Wishing to replace the excellent micro SD Card 8GB Class 6 that fitted my samsung wave to set a maximum capacity card for the phone, I chose this brand card at an affordable price. By cons is a class 4, which should be enough to film in HD 720p in view of rates, but be aware that the use it seems limit writing speed so be careful! When I film the timer freezes, even if ultimately the video is still recorded without jerks. Be careful though if you have to shoot in 720p, take a class 6 because some devices are less tolerant than the less (for 1080p I guess you have a class 10 to be comfortable? Check). For the rest it works nickel (film transfers, music, GPS maps).