I don't know it's fair to assume quality means theoretical quality over perceptual quality in this context. They took the time to make sure perceptual quality w

I don't know it's fair to assume quality means theoretical quality over perceptual quality in this context. They took the time to make sure perceptual quality was quantitatively consistent, so they get a pass in my books. I'd be angry, however, if they used the word "lossless", as that implies no _information_ is lost.