works.  its an SD card, what did you want some kind of essay explaining the depths of flash memory.  No, you didn't.  And you've probably heard of sandisk, so you know its probably reliable.  the only reason you're looking at the reviews... *sigh*... why are you looking at the reviews of a microSD card?  seriously...  take a break, get off the computer and go for a walk.  i'm for real.  you know i'm right.