Problems with iMovie when editing 4K videos- Quick Fix

Problems with iMovie when editing 4K videos- Quick Fix

Category : 4K Formats , iMovie/FCE

4K is a new resolution standard which offers higher image definition quality, more detailed picture, better fast-action and larger projection surface visibility. With the continually emerging of 4K products such as 4K camcorders(Sony PMW-F5/F55, Red Epic, Blackmagic 4K, Panasonic GH4, etc) and 4K YouTube channel, we can obtain as many 4K video as we wish. If you recorded some 4K videos with your 4K camcorder, you may prefer to edit them before sharing with friends. Then the question arises. Will editing programs like iMovie support 4K videos?

In fact, currently 4K videos still cannot be well supported by iMovie mainly because of the ultra high video resolution and the format compatibility problems. When working with 4K MXF/MP4/MOV/XAVC/H.265 recordings in iMovie, you are advised to first convert 4K to Apple InterMediate codec that are natively supported by iMovie.

How to Convert 4K Video to AIC Codec for iMovie?

Different 4K camcorders record different formats, such as, MXF, MP4, MOV, AVCHD, MTS, M2TS, etc. To edit 4K videos in iMovie, you need the help from Pavtube Video Converter for Mac. Featured with the most advanced converting technology, the 4K to ProRes converter can easily convert 4K videos to Apple InterMediate codec with 1080p settings in perfect V/A sync for using with iMovie with smooth workflow.

Besides iMovie, the program also supports more professional encoders, ProRes, DNxHD, DVCPRO, HDV – ensuring the best results when editing with Final Cut Pro, Adobe Premiere, Avid Media Composer, etc. respectively. Plus, this 4K converter is also available to customize the output resolutions to any size like 1080p, 2K, 4K as users want.

Other Download:
– Pavtube old official address:
– Cnet Download:

Best Way to import 4K files to iMovie Natively Via Mac OS Sierra

1. Load 4K files

Install the 4K Video Converter program on Mac and run it. Drag the 4K files to the software. It supports batch conversion and joining multiple video clips into one file.

2. Choose AIC as output format

Click the Format column to select output format “iMovie and Final Cut Express > Apple Intermediate Codec(AIC) (*.mov)” as the best compatible video format for editing 4K in iMovie.

3. Adjust video, audio settings

Click the “Settings” button and customize proper video/audio parameters including Video size, bitrate and fame rate and mroe. Usually 1920*1080 video size and 30fps video frame rate are recommended for iMovie editing. Well, if you prefer to work with 4K video, you can adjust video size to get 4K ProRes for iMovie.

How to Edit 4K video files?

Select an item to activate the “Edit” menu, on the “Video Editor” Window, you can play and preview the original video and output effects. Also you can flip video, trim, add special effect, reset, and adjust volume.

4. Start conversion

After all necessary settings, hit the “Convert” button to start the 4K video to AIC conversion on Mac OS X. Once the conversion process shows in 100%, click Open to get the output videos. Create a project and start editing 4K video in iMovie 8/9/11 with light speed.

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