I'm sure it is just a marketing term that they've come up with. https://www.amaz...

		bee_rider on Jan 20, 2022 \| parent \| context \| favorite \| on: Music subscriber market shares Q2 2021 I'm sure it is just a marketing term that they've come up with. https://www.amazon.com/music/unlimited/why-hd HD: 'CD quality audio (aka, “lossless”)' Ultra HD: 'Better than CD quality audio (up to 24 bit, 192 kHz)'