These discs typically focus on the two main surround sound standards used during the DVD era: Core Audio Formats Dolby Digital (DD) 5.1
A/B comparison tracks.
The core appeal of this disc is its ability to highlight the technical differences between DD and DTS.
A comprehensive test disc is generally divided into two main sections: Technical Calibration Real-World Demonstrations A. Technical Calibration Signals Pink Noise Channel Checks:
: Short, high-impact cinematic clips designed to demonstrate the "fullness" and "room-filling" quality that DTS is known for compared to standard Dolby. Usage Compatibility Source Material
Professional-grade test discs typically include a series of rigorous benchmarks: