What MP3 players are

What they are

A digital audio player (also known as a DAP, or as an MP3 player, due to that format's ubiquity) is a device that stores, organizes and plays digital audio files. It comprises three main types: MP3 CD players, simply CD players capable of reading the MP3 file format; flash-based players, holding files on solid-state media internal or external to the device; and hard drive based players (or 'digital jukeboxes'), holding files on an internal hard drive.