The only relevant rating is the V rating. The minimum V rating you really see anymore is V30. Right there, that makes the fuckin C rating irrelevant, because they topped that out at 10 for some reason, and all V30s surpass that. Also the U rating for the same reason (tops out at 3). Any bullshit speed ratings for reading and for maximum write do not need to be on the tiny fucking space of the card. The only relevant speed is sustained write. All the other shit like HC, XC, and whatever, those have to do with file system and maximum storage that the file system could hold, which says nothing about the specific card you have. The only important thing is that HC can't make files bigger than 4 GB. Also I hate the proprietary marketing terms like Extreme! that SanDisk crams on. You know what else is extreme
Anonymous D joined in and replied with this 7 months ago, 3 hours later, 5 hours after the original post[^][v]#1,374,238
I've always ignored speed and storage space and gone straight to the higher quality units (usually translates into good speed anyway). The no-name cards that come with devices go into the trash where they belong. I agree that they could chill out a bit and just stick to a standard. I don't need a new version of SD card every year. Same with video cables, HDMI-Displayport-27.8-mini-halogen-shrouded-dingleberry-McCable can bite my butt.
boof (OP) replied with this 7 months ago, 57 minutes later, 12 hours after the original post[^][v]#1,374,350
@1,374,238 (D)
Indeed, there are years-old SD standards that have not been built into anything. We might imagine video cameras would go for that, but at that level, the CFexpress cards are already available with better value for your clams, and they'd also be competing with recording straight to SSDs.