That's what they're doing to the music that people upload, yes. Nobody's literally sticking a CD into a YouTube server, so what's on the CD is kind of beside th

That's what they're doing to the music that people upload, yes. Nobody's literally sticking a CD into a YouTube server, so what's on the CD is kind of beside the point. The parent poster's observation is that labels are uploading different, less-compressed mixes to YouTube now than the mix they release on CD, so that they sound better given YouTube's normalization.