I had them correctly rated. On board laptop sound card and Sennheiser 595 headphones. Semi-audiophile. Played them all full length, and entered the grades while listening. Did some additional testing using random, came at the same grades . My primary tell was the ease of listening next to the (lack of) dynamic range . I often listen to streaming radio, and sometimes it takes 15 minutes to figure that the quality stinks. I think this is a subconscious thing, it irks me to hear very low quality music. So I wonder the effect of lossy compression of non-dogs' mind...