VideoStudio 2019 cannot add .MOV files
Unable to open file .mov file format mismatch 16803:1:2
QuickTime is not installed. Install QuickTime. Here is the link to the QuickTime download:
When you install, I recommend you let the installer associate filetypes with QuickTime.
You may also want to increase the types of files you can work with by installing more codecs. I recommend using the K-Lite Codec Pack.