Why MP4 is common
MP4 is widely used because it is compatible with many devices and players. When supported by the source, you can select MP4 in the app.
Download video as MP4 on Windows
Choose MP4 when it is offered by the source, download compatible videos to your Windows PC, and manage them from download history.
Choose quality based on the source
Available resolution and format options can vary by source, so the highest choice may not be identical for every link.