Why YouTube Downloads Need Merging Above 360p
YouTube stores most videos as separate adaptive streams: one file with only the picture, another with only the sound. The only format that ships both together today is a low-bitrate 360p MP4, which is why many simple downloaders stop there or hand you a silent 1080p file.
When you choose 720p or higher, DownForge.Pro fetches the matching video and audio streams and remuxes them into a single MP4 without re-encoding, so the picture stays exactly as sharp as it is on YouTube and the download starts as soon as the merge is done.
