Kristian Lam wrote:These cards do not show up or will not be recognized.
If you have them, I strongly encourage you to contact Sandisk tech support and mention that you are going to be using them with Blackmagic Design products.
Kristian, Interestingly after my initial research and reading this and other threads that I found and looked at all 6 of my cards again. This oldest 2 are pre-"V30" label 32Gb cards and work flawlessly. The newer 4 are all "V30" label cards (3 are 32Gb and the most recent is 64Gb). So far all cards are recognized in my BMPCC all record proresHQ clips flawlessly. Since the 64Gb was the newest (and most likely to have issues based on anecdotal evidence from other threads that seem to imply 32Gb cards are not affected), i decided to format as exFAT today in camera, and shoot short ProresHQ and Raw clips. Both recorded as expected and do not show any sign of dropping frames.
End result of my very basic initial testing is that all 4 of my "V30" cards appear to work perfectly, especially if the 'fail state' with this Extreme Pro card issue is the the cards are not recognized by the camera.
I'm not sure if these steps have any bearing but in case they do. I'm interested in working with others to try and identify why some "V30" cards work and some do not so that we can hopefully hone in on the reason/identifying info that tells us which "V30" cards are good and which are N/G:
-My BMPCC has an older firmware revision (one of the last BM camera firmware updates before they stopped adding features for the BMPCC).
-As mentioned before 3x 32GB cards seem perfect. Newest (1x 64Gb) also is recognized and appears to record HQ and Raw correctly on initial short tests. Perhaps this issue primarily affects 128Gb and above? (Note: I'm sure I have seen at least a few problems with their 64Gb cards so I'm not sure what makes mine different. I have not see reports of issues so far with 32Gb cards.
-I format all of my cards in-camera only. I have used both exFAT and HFS+ with success but only use exFAT now (and therefore for the most recent V30 cards I bought).
-All of my V30 cards were ordered through Amazon direct (not a 3rd part) and all before Oct 2018.
-I do not have the package but I can transcribe and include the serial numbers on the back of the SD Cards themselves if they help us hone in on any valuable details.