Odd card behaviour

Hi all. New to the forum. 

I have two gopro cameras, a hero 5 and hero 6 both black editions. I just captured some footage on the 6 but when playing back through the hdmi not all the video files are visible. If I put that card into the 5 it shows no media at all. Browsing the card via a pc reveals all the files and they play just fine. 

Gopro asked me to verify the card type as only certain cards are compatible and according to the data available on the card and their site it ought to be ok as long as neither card or camera are faulty. The question of authenticity has also been raised about the card. 

It it is a 128 GB extreme micro SD v30 with the code 7287DPKTCO2U on the back. Is there a way to check it is genuine?

ive a 64GB card too and that seems to have worked ok in the past with the 5 but the 6 is new. 

Hope you can help me get to the bottom of this. 

@davebrannigan wrote:

 

The question of authenticity has also been raised about the card. 

 

It it is a 128 GB extreme micro SD v30 with the code 7287DPKTCO2U on the back. Is there a way to check it is genuine?

 

 

Sandisk can confirm authenticity for you:

https://www.sandisk.com/about/contact