First, decide what you need
Downloading a video can mean three different things: recovering an upload from your own channel, saving a video to watch offline, or getting a short section as a file for an edit. The right method depends on which of those jobs you are doing.
If you only need ten seconds of footage, downloading a long video gives you more work to do. Find the useful section first, then choose the method that gets you to a usable result with the fewest steps.
Download a video from your own channel
For a video you uploaded, open YouTube Studio and go to Content. Find the video, open its menu, and choose Download. YouTube’s help page explains availability and download limits.
This is useful when you need a copy of your own published upload. If you still have your original master file, use that for a new edit instead of introducing another compressed copy into your project.
Save a video for offline viewing
YouTube’s offline download feature is designed for watching inside YouTube. It is a different workflow from obtaining a media file for an editing timeline.
Before choosing this option, ask whether you want to watch the video later or use footage in a project. Offline viewing solves the first job; an editable local file solves the second.
Only need a section? Save a clip
For footage you own or have permission to use, Cutra lets you save a selected YouTube moment to your Mac. Open the video with the extension installed, mark its start and end, choose video or audio, then send the selection to the desktop app.
When processing finishes, open the clip from your library and bring it into your editor. You have the selected section ready to work with, rather than a long source file that still needs to be searched and trimmed.
Check the file before you edit
Play the beginning and end once. Make sure the shot or sentence is complete, the audio you need is present, and the file opens in your editor. Give it a name that tells you where it belongs: opening-shot, interview-answer, or room-atmosphere.
For B-roll, leave a little room around the action. For dialogue, avoid cutting off the breath before a sentence or the final word. Those small choices make the clip easier to shape in the timeline.
The goal is a file you can use immediately. Start with the moment you need, choose the appropriate download path, and get back to making your video.
Source: YouTube Help: download videos you uploaded
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