How to edit Sony SLT-A77 II MXF files in iMovie?

Can't import MXF files from your Sony SLT-A77 II to iMovie any longer after upgraded to macOS High Sierra? You are not the only one. At the moment, High Sierra does not have native support for MXF files yet. Fortunately, this problem can be solved via transcoding Sony SLT-A77 II MXF video to iMovie preferred Apple InterMediate Codec (AIC .mov) first.

"Sony SLT-A77 II MXF import to iMovie is impossible since upgraded to version 10.1.8 with macOS High Sierra. I am pretty sure that the previous version of iMovie (10.1.7) on Sierra was able to import MXF files from my Sony SLT-A77 II. Since the newest update today, it has become impossible to do that. Is anyone else experiencing this problem? Any ideas to go through this issue? Please help!"

Indeed, this is a High Sierra issue. Currently, to be able to use Sony SLT-A77 II MXF footage in iMovie correctly, you could convert the Sony SLT-A77 II MXF files to AIC .mov first, and iMovie will read the transcoded files in that way.

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How to encode Sony SLT-A77 II MXF files to AIC .mov for iMovie editing?

To transcode Sony SLT-A77 II MXF video to AIC for iMovie editing, do as below: Download Video Converter for Mac

Video Converter (It is available for Mac, simply download the proper version depending on your computer.)

Step 1: Click "Add File" to load Sony SLT-A77 II MXF video files into this program.

Step 2: Select output format for iMovie Click "Profile" to select "iMovie and Final Cut Express" > "Apple InterMediate Codec(AIC) (*.mov)" as output format. AIC .mov is iMovie's favorite editing codec, which iMovie will read and handle well.

Tips: If necessary, you can click "Settings" button to modify video and audio parameters like encoder, resolution, frame rate, bitrate, aspect ratio, sample rate, and audio channels. You can also "enable 3D Settings" to add 3D effect to your source media.

Step 3: Click "Convert" to start Sony SLT-A77 II MXF video to iMovie conversion. As soon as the conversion is complete, click "Open Folder" to get the generated AIC .mov files for editing in iMovie with optimum performance. Hope it helps.