How to import Nikon D3400 60p files to iMovie?

Came upon issues editing Nikon D3400 60p files in iMovie? Couldn’t figure out a smooth workflow between D3400 and iMovie? Check this post to learn a workaround of transcoding D3400 60p files to AIC for use in iMovie smoothly.
nikon d3400 in imovie
iMovie doesn’t handle Nikon D3400 60p files well, how to fix?
“Hi guys, I just came back from a vacation. I’ve taken several short videos with my Nikon D3400. Today I tried importing them to iMovie for editing. I can load them, but the editing process is not stable and reliable, especially when working with 60p files. Is there anything I can do to fix this? Thanks for any suggestions.”

If for whatever reason you are unable to use D3400 footage in iMovie fluidly, we would recommend converting the footage to an edit friendly codec for iMovie first, such as Apple InterMediate Codec, which iMovie will recognize and handle well. Here’s how.

How to convert Nikon D3400 footage to AIC for iMovie editing?

Software requirement
HD Converter for Mac
Nikon D3400 to iMovie converter

The steps:
Step 1: Open up HD Converter for Mac as a Nikon D3400 Converter for iMovie. When its main interface comes up, click ‘Add File’ to load your source media.
work with D3400 60P in iMovie

Step 2: Select output format for iMovie
To convert D3400 video files for iMovie, 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.
D3400 60P to AIC MOV Conversion
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 Nikon D3400 video files to AIC MOV Conversion on Mac
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.

Related posts
G7 X Mark II in iMovie-edit G7 X Mark II 60p MP4 in iMovie
Nikon D5/D500 4K MOV in Avid-transcode Nikon 4K to DNxHD
Nikon D5300 Converter for Mac-convert D5300 H.264 on Mac
XAVC converting to FCP 7 free app-convert XAVC to ProRes