iMovie 10.1.8 won’t read AVCHD .mts footage from Panasonic camera after upgraded to macOS High Sierra? There have been reports of problems importing AVCHD files with High Sierra. A workaround that has been suggested is to convert your AVCHD files to MOV with AIC codec. HD Video Converter for Mac is one program that can do this.
iMovie 10.1.8 not importing AVCHD files from my Panasonic TM700
“Hello, I upgraded to iMovie 10.1.8 and macOS High Sierra. Previously I had iMovie 10.1.4 and Yosemite. I have a Panasonic HDC TM700 camcorder. (Format: AVCHD). All worked well until the upgrade. Now, when I attempt to import, the thumbnails show, the video plays, but no import takes place. When this bug will be fixing? Any workarounds to go through this? Thanks.”
As we stated in the beginning, at the moment, you need to convert Panasonic AVCHD footage to Apple InterMediate Codec before you start editing in iMovie. Here is how.
How to convert Panasonic AVCHD MTS files to AIC .mov for iMovie editing on High Sierra?
Here’s what you need
HD Video Converter for Mac
Step 1: Open up HD Converter for Mac as a Panasonic AVCHD Converter for High Sierra iMovie. When its main interface comes up, click ‘Add File’ to load your source media.
Step 2: Select output format for iMovie
To convert Panasonic AVCHD MTS video files for iMovie on High Sierra, from ‘Profile’ list, choose ‘Apple InterMediate Codec (AIC)(*.mov)’ as output format under ‘iMovie and Final Cut Express’ column. This codec is also suitable for use in the discontinued FCE.
Important: If you’ve loaded a number of video clips to do batch conversion, please do remember ticking off ‘Apply to All’ option before you start.
Step 3: Custom video and audio settings (optional)
If necessary, you can click ‘Settings’ button and go to ‘Profiles Settings’ panel to modify video and audio settings like video encoder, resolution, video bit rate, frame rate, aspect ratio, audio encoder, sample rate, audio bit rate, and audio channels. 3D settings are also available.
Step 4: Begin Panasonic AVCHD to AIC MOV Conversion for iMovie on High Sierra
When ready, click ‘Convert’ to start format conversion. Once the conversion process is complete, you can click ‘Open Folder’ button to get the generated AIC MOV files for editing in iMovie with optimum performance.
If you don’t want to wait for the entire conversion process, you can tick off ‘Shut down computer when conversion completed’ and go away to do other things.
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