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目前,市场所销售的录像带一般可分为进口带和国产带两大类。对于普通录像带质量,通常可直接观察来鉴别其外观、包装质量,然后上机试用,从图像、音响等方面来鉴别其录放性能的优劣。一般情况下,多数采用直接观察法来鉴别。 1.从外包装上鉴别 质量较好的正牌录像带一般外包装均封有透明玻璃纸,且包装平整、挺括,封口紧密、整齐。而伪劣商品
At present, the video tapes sold in the market can generally be divided into two categories: imported tapes and domestic tapes. For ordinary video quality, usually can be directly observed to identify its appearance, quality of packaging, and then try the machine, from the image, audio, etc. to identify the merits of its recording performance. Under normal circumstances, the majority of direct observation to identify. 1. From the packaging on the identification of good quality genuine video packaging are generally sealed with transparent cellophane, and packaging smooth, crisp, tight seal, tidy. And shoddy goods