I had to shoot some videos for a class. They recorded as MTS files so I converted them to MP4 using iSkysoft Video Converter.
When I opened them again in Final Cut Pro, I could only hear the audio and the viewer was black.
But if I open the converted footages on Quicktime, they work fine. The mp4's format is H.264, could it be the problem?
FCP doesn't work with MP4. You are using the wrong converter. For AVCHD .mts files, you need to use ClipWrap2, and convert to ProRes 422.
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