Buy it for track 5: Hear the dramatic differences between well-known and highly regarded microphones, using Sam Tellig's voice. Consider the test tones and analog and digital music recordings done by J. Gordon Holt and Robert Harley to be icing on the cake. Really, the 'mic' comparison track is quite informative.
1. Reference Tone (Mono) L + R, With The Audio Anarchist Listen Listen Listen
2. Channel Identification With The Audio Anarchist & Ralph The Christmas Dog Listen Listen Listen
3. Channel Phasing With The Audio Anarchist & Ralph The Christmas Dog Listen Listen Listen
4. Pink Noise At - 20dB L + R (Uncorrelated From 1:11) Listen Listen Listen
5. 'Why Hi-Fi Experts Disagree' (Microphone Comparison) - J. Gordon Holt Listen Listen Listen
6. The National Emblem - Nether Providence High School Band
7. Les Sept Paroles Du Christ (Excerpt) - Philadelphia Oratorio Choir
8. Chanson Hebraique (Absolute Polarity) - Sam Jones
9. Praeludium - Delaware Symphony Orchestra
10. Scherzo In B-Flat Minor Op.31 - Anna Maria Stanczyk
11. I'm Old Fashioned - Bruce Dunlap
12. Threedledum - Bruce Dunlap/Dan Kolton
13. Summertime (The Lesley Test) - Lesley Olsher
14. Romance, Op.94 No.1 - Gary Woodward/Brooks Smith
15. Romance, Op.94 No.2 - Gary Woodward/Brooks Smith
16. Romance, Op.94 No.3 - Gary Woodward/Brooks Smith
17. Romance, Op.94 No.3 - Gary Woodward/Brooks Smith
18. Romance, Op.94 No.3 - Gary Woodward/Brooks Smith
19. Concerto In D Minor, After Vivaldi, BWV 596: Allegro - James Johnson
20. 1kHz 1/3-Octave Warble Tone At - 20dB
21. 200Hz 1/3-Octave Warble Tone At - 20dB
22. 160 kHz 1/3-Octave Warble Tone At - 20dB
23. 125Hz 1/3-Octave Warble Tone At - 20 dB
24. 100Hz 1/3-Octave Warble Tone At - 20dB
25. 80Hz 1/3-Octave Warble Tone At -20dB
26. 63Hz 1/3-Octave Warble Tone At - 20dB
27. 50Hz 1/3-Octave Warble Tone At - 20dB
28. 40Hz 1/3-Octave Warble Tone At - 20dB
29. 31.5Hz 1/3-Octave Warble Tone At - 20dB
30. 25Hz 1/3-Octave Warble Tone At - 20dB
31. 20Hz 1/3-Octave Warble Tone At - 20dB