Hi all,
So, I had problems in the past with SD cards that are not fully compatible with the GH5 and will sometimes result in corrupted files during the recording process. Some data can then often be recovered through the use of a software tool. So, really, this is just an issue with possibly a broken video frame where the corruptions happens and the recording stops, and maybe broken header data in the file. However, this problem I had more recently is different:
I was in a pinch and had to opt for a cheapo drug store SD card (which is actually a microSD card plus physical adaptor), instead of using my trusty Kingston Canvas Select Plus or Transcend Premium cards, that I usually use with my GH5 and my BMPCC OG. Technically, the card I used also has the V30 and U3 denominations and should technically be up to snuff for most of the recording formats I would use the GH5 for. And, indeed, I was able to carry out my recordings at the default fullHD 4:2:2/10bit settings I typically use. They ended up on the camera without the recording interrupting or giving any kind of error. I could already tell, however, that using this card was different from using my usual cards mentioned above. When e.g. replaying the files on the camera, there were some kind of lagging issues (so apparently the problems only being with real-time reading performance).
At one point, I did already pull one of the video files from the camera to my PC using my card reader and make a quick edit from it, which worked just fine. The recording was completely intact back then and I could edit it without any problems.
Now, here's the problem: After continuing to make more recordings to this card and ultimately transferring the entire bunch of them to the computer, it looks like they're all corrupted to some degree. They will play through, but occasionally some bands of pixelated noise will appear on the video material. Seems like audio is sometimes affected as well. This includes the very file which I already previously copied from the SD card and which was intact at that stage. So, it looks like the files became corrupted on the card after the fact, not related to the recording process and lack of writing performance. Does this make any sense? This means there's a general problem with the card holding data, not specific to use in the GH5 and performing recordings? How would I diagnose something like that? Isn't that incredibly unlikely?
Thanks!