Rejecting non-common ranges
Synchronized clips are trimmed to a clean, common length, so they never contain rejected gaps. Only multicam clips — which must keep every angle at full length — mark the parts that aren’t covered by all angles.
Synchronized clips are trimmed clean
When Media Sync Tool builds a standalone synchronized clip, it trims the synced audio to the video’s range. The result lines up for its whole duration, with no rejected sections. If the external audio is much shorter than its video—for example, the recorder started late or stopped early—the video is never shortened to match: you keep the full picture, and only the audio is trimmed to fit.
Multicam clips mark uncovered angle ranges
A multicam clip spans the full timeline of all its angles, so some cameras won’t cover the entire range—a camera that started rolling late, for instance. Media Sync Tool marks those uncovered portions of each angle as rejected, so you can tell at a glance where a multicam clip has all angles coverage.
Tip: In Final Cut Pro, use the Hide Rejected filter in the library browser to hide the uncovered areas of multicam angles. To learn more, see the Final Cut Pro User Guide.