I bought a Sandisk Ultra 64GB with my Gopro 3 black in China. Since the recording of sound is out of phase with the image, and the image is not smooth, perhaps missing frames, I bought a Supreme PRO micro SD 64GB . Since the performance was still not good at all, I updated the camera firmware. The recording is strange. It appears to delay recording and is skipping frames, but this behaviour repeats identically every one (or two) seconds.
Testing both memories with adapter on a lapto with h2testw t I got 9MB/s for Ultra and 18MB/s for Supreme PRO for writing. To be honest, after updating the camera firmware, the performance of the Ultra is much better than the Supreme Pro.
The question are:
Are there too many fakes Sandisk out there?
How adequate the Sandisk are for Gopro cameras?
Is Sandisk selling defectives memories cheaply instead of destroying them?
The Supreme Pro memory was bought at mercadolivre.com.br with a vendor called Silvio Saito.
I lost confidence for both Sandisk and Gopro. By extreme coincidence, Gopro 3 Black Edition has been badly regarded by many people. Silver Edition appears to be better. I also heard that Gopro does not accept big memories.
thanks
Carlos
