@nyanotech really shows the massive difference in material cost when they have to meet the full V90 / U3 specs for sustained transfers. so much more fast flash required.
@gsuberland anyway i bought new cards (the middle one here and one of the lexar 2000x, planning to use both of them as the pair in the camera) because i noticed that the cheaper model sandisk i was using before would have a few bits changed every time i copied the files off
@nyanotech this is why making SD cards the defacto storage medium for SBCs was such a huge blunder. they're bitrot hell in failure modes, the cost incentivises fakes, and you can't even guarantee integrity of data on a brand new card even if it is legit. plus they're slow as shit unless you pay the toll to use the full-fat SD protocol.
@gsuberland none of the local brick and mortars have the ones i want (though, i didn't check the camera places; i probably should've done that), and, well, all the general-purpose online retailers have become Marketplaces now