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Why 360-Degree Video File is So Large

I have a 5-minate 360-degree video. When I import it to Final Cut Pro, it takes up about 100 GB space. How is it possible? What happen when I want to edit a couple hours of 360-degree video?


My Mac only has 512 GB of space. I don't see it is big enough for any large 360-degree project.

MacBook Air 13″, macOS 11.3

Posted on Sep 5, 2021 7:41 PM

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Question marked as Top-ranking reply

Posted on Sep 6, 2021 12:33 AM

You are creating optimized media on import. You almost certainly don’t need it.

Select the library in the browser, and do File->Delete Generated Library Files. Check all the boxes.

Quit and restart FCP and you will have recovered a LOT of drive space.


Go to Preferences->Import and UNcheck the creation of optimized and proxy media. Only optimize particular files if you have a reason to. For a lot of people that is never.

3 replies
Question marked as Top-ranking reply

Sep 6, 2021 12:33 AM in response to BingZL

You are creating optimized media on import. You almost certainly don’t need it.

Select the library in the browser, and do File->Delete Generated Library Files. Check all the boxes.

Quit and restart FCP and you will have recovered a LOT of drive space.


Go to Preferences->Import and UNcheck the creation of optimized and proxy media. Only optimize particular files if you have a reason to. For a lot of people that is never.

Why 360-Degree Video File is So Large

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