Excellent had it on my canon 60d filming my daughters party wide angle lens and 24 fps and it lasted the whole party. I am totally over the moon and would highly recommend and the transfer to my mac is ultra fast. I can honestly say a lot faster than Im used to and the price is excellent for quality card you receive .
If you are doing lots of filming and are always running out of space like I used to be, then at thius price point you cant go wrong. I dont have to delete know where near as much as I used to and It seems to last for ever compared to my old 16gb cards. They also transfer alot quicker to your computer or mac and can hold thousands of songs, but remember these are the larger cards not the micro Sd Cards.