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In case that the Apple Pro Video Formats codecs cannot be found when you start Just Out or Just Control, a warning will be shown. Click Install to open the Link to the Apple download page mentioned in the installer image. Make sure to install the codecs also on all machines running Just Control, as Just Control uses them to preview the movies.
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To obtain the appropriate professional Apple codecs you need to download and install the Free Apple Pro Video Formats (“ProVideoFormats.dmg”) from https://support.apple.com/kb/DL2100?locale=en_GBen-us/106396 . Once downloaded, open the “ProVideoFormats.dmg” image and double-click the “ProVideoFormats.pkg” installer to perform the installation.
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