Imovie mp4 imports - audio imports fine but not video

I have attempted to import several mp4 files some import fine while the majority import only the audio without the video.

That's could be caused by the incompatible codec of your mp4 files. iMovie can support mp4 files encoding with H.264 and MPEG-4. I'm not sure whether your files are in such codec. Maybe you can try a video converter to help you convert your mp4 files to iMovie first. it's simple and you just need to "Add File"-> "Convert to"-> "iMovie"-> "iMovie H.264(*.mp4)"/"iMovie ProRes(*.mov)".

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Hi I need your help
I am using Premiere Pro CS4 on a MAC,
We have a project that is using multicam editing of footage from 2 cameras. the footage is fine in the timeline when you move through the time line the footage is 2hours 20 min when edited.
When rendering this out it takes about 9 hours when you play footage back it stops at the 43 min mark the audio continues but the video freezes on the frame for the rest of the footage.
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Rodney

Rodney,
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Imovie mp4 imports - audio imports fine but not video

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