光盘大多采用聚碳酸脂作盘基，铝或其它金属质膜作反射层，聚丙烯酸酯作保护层制作而成。如果使用或保存不当，极易损坏。在使用和保存光盘时应注意以下几点： １．光盘上的信息一般是被大规模压缩后存储的，光盘镜面极微小的划伤或污染，都可能造成数据丢失。因此，必须保持光 Discs are mostly made of polycarbonate for the disk base, aluminum or other metal film for the reflective layer, made of polyacrylate as a protective layer. If used or stored properly, easily damaged. The following points should be noted when using and saving the disc: 1. The information on the disc is generally compressed and stored on a large scale, with minimal scratches or contamination on the disc mirroring, which can result in data loss. Therefore, it is necessary to keep the light