1995 MZ-B3
The MZ-B3 is a voice recording-focused model that expands the MiniDisc format from music use to voice recording use.
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The MZ-B50 is a MiniDisc recorder that prioritizes standalone audio recording over portability. Equipped with a built-in stereo microphone and speaker, it allows for recording and playback without external devices, making it suitable for meetings, interviews, and dictation. Recording features include automatic recording level control and voice-activated recording, and playback speed can be adjusted for content review. It also includes processing to enhance audio clarity. While line input and optical digital input are available, the design focuses on standalone operation using the built-in microphone. New recordings are always appended to the end of the disc, and the unit's size is similar to that of a dedicated voice recorder.