Custom export bitrate maximum of 66.667 mbps in iMovie?

Hello I've got video clips recorded at 360 mbps but the highest exportable bitrate is 66.667 mbps. Isn't there any way to increase the bitrate and hence quality without jumping up to Best (ProRes) and increasing file size exponentially? I would prefer to set my custom bitrate at something a bit more in the middle so I'm not losing too much quality.

Posted on Jun 22, 2023 04:37 AM

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5 replies

Jun 22, 2023 08:33 AM in response to Ming Mekka

Jumping to ProRes will give you no significant quality difference that is visible to the human eye under normal viewing conditions. You likely would need to compare the clips side by side and zoom in on the pixels. ProRes is intended for professional use where there are very minute and precise editing procedures to be done, or the clip contains very fast action, or maybe for display on a large theater screen. It is not really appropriate for most consumer use.


I guess that if 66.667 mbps is the highest custom export setting available then that is what you would be stuck with. I don't know of any way to increase it. However, try exporting the movie at the best available quality settings and see if the quality is satisfactory to you. You can export as many times as you want from a project. You can use just one clip to experiment. See if Pro Res gives you any significant quality result to your eye, compared to the original footage.


-- Rich




Jun 23, 2023 04:20 AM in response to Ming Mekka

Recording at that humongous bit rate for one hour would use over 160 GIGABYTES of storage. That is ridiculous.


And I bet that you won't be able to tell the difference. As Ian said, don't be fooled by the idea that you will get better quality just because of a high (in fact, too high) bit rate. Compare for yourself.

I bet that you can export an H264 or HEVC with a bit rate that is a small fraction, and you'll be hard pressed to tell them apart.

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Custom export bitrate maximum of 66.667 mbps in iMovie?

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