Well, only one star because there is a significant problem (this is the case to say) with this card. It is too thick and gets stuck in the housing Canon G7 and G9. It can be introduced, but not out. Very annoying anyway, and I see it as a rather monumental design error from Transcend. It seems huge, but it's like that. By cons, it enters (and leaves) without problems of a Pentax Optio 50. A so try in your device before buying.