Ключевые слова: audio, backup, byte, cd, circle, closeup, colors, colours, communication, compact, compact disc, computer software, copy, copying, datum, digital, digitally, digitally generated image, disc, disk, dvd, equipment, glare, horizontal, image, industry, information, information medium, media, multimedia, music, no people, object, optical, optical instrument, plastic, record, recordable, reflection, round, shiny, software, sound recording equipment, spectrum, storage, technology,