"Extra Quality" isn’t a standard technical industry term, but it usually refers to a combination of three factors: Resolution, Bitrate, and HDR.
Extreme Resolution: Moving beyond 4K into 8K territory provides a density of pixels that makes digital images indistinguishable from reality on large screens. hd+movies+5+pro+extra+quality
Not all HD is created equal. While standard HD typically refers to 1080p, "Extra Quality" isn’t a standard technical industry term,