There are several options available for downloading 4K song videos:

A 4K video offers four times the pixel density of standard 1080p HD. In the context of music videos, this translates to:

The Rise of 4K Song Videos: A New Era in Music Consumption

Storage Space: A five-minute 4K music video can range from 300MB to over 1GB depending on the bitrate.

WebM: Often used by YouTube for 4K and 8K streams; great for PC playback but may require specific players on mobile. Tips for the Best Playback Experience

Future research directions could include: