In 1992, Sony introduced the MiniDisc format. Designed as a portable audio system with a different structure from cassettes, it integrates recording capabilities, vibration resistance, and high-speed access.
MZ-1
The MZ-1 was the first MiniDisc recorder to replace linear tape with random access discs, significantly changing how recorded audio was handled. Its configuration, which allowed for track splitting, merging, moving, and deletion without affecting other recordings, revolutionized editing operations in portable audio. It supported recording from microphone, line, and optical digital inputs, and also featured manual level adjustment and real-time monitoring. ATRAC compression reduced data size, enabling digital recording without requiring the same recording capacity as uncompressed audio. The motor-driven loading mechanism and large chassis housed the early optical and magnetic components, and the basic operational configuration of MiniDisc-including recording, editing, and disc management-was established at this stage.
MZ-2P
The MZ-2P is a player-only model that positions MiniDisc playback as a dedicated player by omitting the recording function. While maintaining the basics of disc reading and compressed audio playback, it has a streamlined configuration as a playback-only device. The control system is centered around a shuttle mechanism for cueing and track switching, and also includes playback modes such as repeat and shuffle. Track information and disc information are displayed on the display, and the sound quality during playback can be adjusted with a bass boost function. The chassis is still large, retaining the mechanical configuration derived from early recorders, and the battery system and operating time also show limitations typical of the early generation.
In 1992, MiniDisc became a commercially available product. At the same time, the basic structure for portable recording, high-speed access, and digital audio playback was established.
