unreadable

My dashcam is a Cobra DriveHD Bluetooth 855 Model. Sometimes when I place the micro-sd card into my phone, random video files (roughly a third or so, maybe half) will appear as '0 bytes', and obviously won't play. Occasionally instead of 0 bytes, the file size is just unsually small (like 50...

Hi all, I recently bought a Eyoyo Mini 0806 and I'm having this weird problem I can't seem to figure out. When I take off the microsd from the dashcam and try to read it on my pc, and macbook alike, it's unreadable. Under disk management on my macbook I managed to see the microsd visible. I did...