Can’t import MXF files from your Sony FDR-X3000 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 FDR-X3000 MXF video to iMovie preferred Apple InterMediate Codec (AIC .mov) first.
“iMovie won’t import my Sony FDR-X3000 MXF files after updated to macOS High Sierra. Why did this happen? Is there anything I can do to solve the issue? Any help would be appreciated.”
After an update it is a good idea to delete preferences to clear out any possible corrupted preferences caused by the update process. Try opening iMovie while holding down the Option and Command keys, and then selecting to delete preferences in the box that appears. See if that solves it. If not, try converting the Sony FDR-X3000 MXF files to Apple InterMediate Codec encoded QuickTime MOV format with the following Video Converter for Mac.
To transcode Sony FDR-X3000 MXF video to AIC for iMovie editing, do as below:
Download Video Converter for Mac
Step 1: Click “Add File” to load Sony FDR-X3000 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.
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 FDR-X3000 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.