.mov files from sd card greyed out

Hello islandkaren,

Make sure the SD card meets these specifications from Use the SD and SDXC card slot on your Mac - Apple Support:

Your SDXC card slot supports the following cards: 

• MMC

• Default Speed

• High Speed

• UHS-I

• UHS‑II (Mac Studio introduced in 2022, MacBook Pro introduced in 2021, iMac introduced in 2020, and iMac Pro only)

Are you trying to access the files from an application?

What happens if you try to move or copy the file?

This information may allow others to offer possible solution.

Cheers.