目前能在市面上见到的激光碟片共有七种。若按直径大小,可分为大碟片(如LD)、小碟片(如CD、VCD等)两类;若按其记录内容,则可分为影碟、音碟两类。这七兄弟分别是: 一、LD(Laser Disc) 即通常所说的大影碟,直径有30cm、20cm两种,可单、双面录制节目。市上主要以30cm双面录制片为主。它采用数字音频、模拟视频 There are currently seven kinds of laser discs that can be seen on the market. If the size by the diameter, can be divided into large discs (such as LD), small discs (such as CD, VCD, etc.) two categories; according to their records, can be divided into video discs, two types of sound discs. The seven brothers are: First, LD (Laser Disc) that is commonly referred to as a large disc, the diameter of 30cm, 20cm two, single and double recording programs. The city mainly to 30cm double-sided recording film based. It uses digital audio, analog video