Hi all, hopefully one of you gurus can help me with this. I'm trying to download the videos from my security cameras to my 2020 MacBook Air m1. I'm using an Apple branded SD Card Reader, brand new with new class 20 SDXC SD micro cards. The first time I plugged in the adapter it showed up in the sidebar of the Finder. Then I formatted the cards in the cameras per the manufacturer's intructions, (Fat32) recorded some videos and now the adapter no longer shows up and the computer says the cards are unreadable. I have no problem using other external storage like flash drives. This is the second set of cameras, cards and the second adapter I've tried. Is something about the way the cards are formatting rendering them unusable in a computer? If that's the case what good is local, removable storage?
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