盗版CD唱碟(以及VCD影碟)是非法音像制品,是对版权的侵犯,应当打击和取缔。如何识别盗版CD,应先从CD的基片说起。正版CD的基片采用特制的聚碳酸醋材料,光透射率、排斥水份的性能以及材料内部的纯洁度均很好,并经专门的时效处理,基片上的金属反射层也镀得严密,保护涂层均匀无气泡。盗版CD先天不足,用料差,甚至用非光学材料,瑕疵多,气泡多,又不经时效处理,易变形、翘曲,寿命短,金属镀层多有漏光,保护层也 Pirated CDs (as well as VCDs) are illegal audiovisual products that infringe on copyright and should be cracked down and banned. How to identify pirated CD, should start with the CD’s substrate. Genuine CD substrate using a special polycarbonate material, light transmittance, water repellency and material purity within the purity are good, and the special aging treatment, the substrate of the metal reflective layer is also plated tightly, Protective coating evenly bubble-free. Piracy CD congenitally inadequate materials, or even non-optical materials, defects and more bubbles, without aging treatment, deformation, warping, short life expectancy, the metal coating and more light leakage, the protective layer is also