There is a bug that changes file sizes and durations when importing
There appears to be an arbitrary factor that will resize image files and speed up audio files to the point where they are unusable. The image files and audio files don't seem to have anything in common except that they will not import correctly unless I modify the files with third party software, then import them again. The files themselves are fine as any other software can open them the way the file exists on the hard drive. I can adjust these files in premier pro, but they lose significant quality.