New Release "ABD-R520DM" Defect Management Test Disc

This disc is designed for playability test of BD player or related products. The contents structure is simulated Defect Management function. Particular address of the disc is intentionally defected in order to make data reallocations at ISA and OSA area of the disc. When a player is played the disc, an optical pick up seeks between ISA and OSA so this disc can be used for playability test including servo adjustment. Each location of the defect is guaranteed by both physical and logical address in order to stabilize each product quality.