What is the storage capacity of a standard compact disc (CD)?

A standard compact disc (CD) typically has a storage capacity of 700MB. This format, often used for audio and data storage, allows it to hold a significant amount of information for its time. The 700MB capacity is derived from the common usage of CDs for music, where approximately 80 minutes of audio can be stored. This specification has been widely accepted and is standard across the majority of CDs produced.

Other capacities listed in the options correspond to different types of optical discs: 4.7GB refers to a standard single-layer DVD, which provides much greater storage than a CD. The 25GB and 50GB capacities represent single-layer and dual-layer Blu-ray discs, respectively, which are designed for high-definition video and larger data storage needs. Each of these formats serves different purposes based on advancements in technology and the increasing demand for storage capacity.