MOV files, which may be from different sources, such as from some video editing software, or from different Nikon/Canon cameras, have different codec inside. Or, Premiere Pro only import audio from MOV files for you. Although Adobe claims that Premiere Pro CS5 and above (Premiere CS6, CC) offer native support for MOV format, you may still meet the error messages like, 'File format not supported', 'Unsupported format or damaged file', 'The file has no audio or video streams', 'Codec missing or unavailable' and '32-bit QuickTime support ending'. Many users are puzzeled by one thing that some files with MOV file extension can't be imported into Adobe Premiere Pro (Premiere Pro CC 2020/2019/2018 included).
Plus, some possible reasons and solutions are also added to help you resolve the problem.
This article shows you the best and easiest solution to troubleshoot Premiere Pro MOV file import failure.