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I created the following "Audio Fidelity" diagram for BandZoogle users. Please take time to study it a little and be better prepared to understand related detail in use of native "WinZip", and whatever WAV editor you have built into your O/S. (A very popular free internet editor program is "Audacity"). WinZip will break-out the WAV files contained in your download then Audacity, or native O/S app, can organize and play the results, allowing for relatively straight-forward ranking by Audio Compression, Bit Depth, and Sample Rate. The Minimal and Optimal "High-Def" WAVs are significantly larger and more detailed than CD. You will hear the difference!