Spears & Munsil has announced a vastly enhanced and expanded 2023 version of its popular Ultra HD Benchmark home theater calibration tool. The new three-disc Ultra HD Blu-ray Disc set boasts 266 gigabytes (GB) of data, including 5,000 audio and video clips, making it the company’s most comprehensive test set to date, according to creators Stacey Spears and Don Munsil. The previous iteration was a single disc with 1,000 encoded files, which represented a high-water mark for evaluation discs at the time.