Downloading media files from YouTube to your project folder
Go to YouTube and find the video you want to add to your project. Copy the URL.
Go to Cobalt. Paste the URL of the YouTube video in the empty field. Leave the Auto button enabled to download the full video (video and audio) or click the Audio button to download the audio component of the video. Click the double arrow button to download the file.
Click the Save button in the Save As box. The file will download to your Downloads folder.