光碟 Traditional form: 光碟 Pinyin (reading): guāngdié Definitions: optical disc compact disc CD CD-ROM CL:片 (piàn),張/张 (zhāng) Characters: 光 - light; bright, brilliant; only, merely 碟 - plate, small dish Traditional characters: 光 - light; bright, brilliant; only, merely 碟 - plate, small dish