[giulivo]

hi, no I haven't A/B tested those but I'm sure the videos sound very good. The hifi equipment is probably far more important than the quality issues of a 192AAC vs the CD.

Yet, I think you're looking at it from the wrong perspective, let me give you an argument.

Keeping the sound of good quality while lowering the bandwidth is an issue; the 192bit AAC is a great achievement in that regard.

Recording and reproducing music with highest quality is another; the CD itself is not entirely lossless in this context.

So I just think for a music streaming service it would be nice to not diminish the music quality at the source of reproducing chain.