That’s why you should always check the actual vendor when ordering.
Never bought SD cards that aren’t being sold by the manufacturer. Never had an issue.
It seems to me that this proves your card is slow / fake. It’s all about the WRITE speed; if you’re recording video at 100 Mb/s, but your card can only write at 43 Mb/s, you’ll hit problems.
I have a link on all my videos to the amazon page that I get all my cards off; they have never let me down:
Sandisk Ultra high speed write: https://www.amazon.co.uk/gp/product/B07G3H5RBT
1 Like
@ianinlondon
It took me a minute to see the 43mb reference but that just happened to be the point that I hit the “stop” button after the program completed its cycle of testing. It just goes on and on testing the same things until you hit the stop button.
Effectively that figure of 43 is just the program revving up to test speed on its next run.
The 2 columns on the right show the speeds of the last run.
As a side issue, how do i know what speed my MA2 writes at?
Thank you.
I’m not going down the rabbit hole of that subject 
@ianinlondon
They are the same as suggested by @clinkadink and the ones I subsequently bought, so 2 recommendations can’t be bad.
1 Like