How to import Sony A7S AVCHD footage to iMovie?

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Came upon issues editing Sony A7S AVCHD MTS files in Apple iMovie? If you are trying to figure out a way to go through this problem, you are just here in the right place. In this article, we explain how to transcode Sony A7S AVCHD .mts media to AIC .mov for use in iMovie smoothly.

How to transcode AVCHD mts files to ProRes for FCP X editing

”iMovie 10.1.7 won’t import AVCHD files taken with my Sony A7S any longer after upgraded to macOS High Sierra. After starting iMovie and Importing Media from SD card reader on iMac – ‘Select All’ – iMovie stalls. The progress bar shows ‘Importing from…reference number .mov’ but stops on clip 1. However the clips are displayed and can be run temporarily. The .mts clips then go black with ? mark and ‘No Camera’. Up to a month ago I had no such problems for over 5 years with the same Sony A7S camera and running Sierra on my ageing mid 2007 iMac. Is the upgradation to High Sierra is the cause of the problem? Please kindly advise a solution if you know. Thanks in advance.”

If you are having the same frustrating problem, we would recommend converting Sony A7S AVCHD MTS files to AIC .mov first. Here’s a guide displaying how to do this below.



How to transcode Sony A7S AVCHD .mts files to AIC .mov for iMovie editing?

To transcode Sony A7S AVCHD .mts video clips to AIC .mov for iMovie editing, do as below:

Video Converter For Mac , It is available for MacOSX 10.5 or above (including macOS Sierra/macOS High Sierra 10.13.14)
download Mac version

Step 1: Add Sony A7S AVCHD footage.
Run Video Converter for Mac, and click “Add File” to load Sony A7S AVCHD MTS files into this program.

import AVCHD MTS video files

Step 2: Select output format for iMovie from “Profile” list
Click “Profile” to select {{export.win.select-profile-steps}} as output format. AIC .mov is iMovie’s favorite editing codec, which iMovie will recognize and handle well.
Select output profile format

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.
Settings for AVCHD video files

Step 3: Start encoding Sony A7S AVCHD files for iMovie editing.
When ready, Click “Convert” to start Sony A7S AVCHD .mts to iMovie conversion. As soon as the conversion is complete, you can click “Open Folder” to get the generated AIC .mov files for editing in iMovie with optimum performance. Hope this helps solve your problem.

Also read:
Does Avid MC support Sony DSC-RX100 IV XAVC S files?
How to fix Sony ILCA-99M2 XAVC S and FCP X incompatibility issues?
How do you work with Sony DSC-V3 MXF in iMovie?
How to transcode Sony ILCA-99M2 XAVC S for iMovie editing?
Sony DSC-P92 AVCHD and FCP X workflow
Encode Sony ILCE-5100 XAVC S to ProRes for Premiere Mac version

Posted in Convert video files for editing, Video format conversion.