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Sony MXDD400X CD Player MiniDisc Recorder Combo

★★★★★5.0 (2 reviews)

Sony MXD-D400X combines CD playback with MiniDisc recording and hi-speed 4x CD-to-MD copying in one unit.

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Overview

The Sony MXD-D400X is a combination CD player and MiniDisc recorder that represents one of the more feature-rich entries in Sony's MiniDisc component lineup. It plays standard CDs as well as CD-R/CD-RW discs with MP3 files, and it records to MiniDisc using Sony's ATRAC Type S codec — an enhanced version of the original ATRAC compression that improved audio fidelity, particularly at lower bitrates used in long-play modes. With MDLP recording, a single 80-minute MiniDisc can hold up to 320 minutes of audio.

One of the unit's standout features is its 4x hi-speed CD-to-MD copying capability, which cuts dubbing time substantially compared to real-time recording. MDLP transfers run at 2x speed. The deck also supports CD TEXT, displaying track and album information when available. For music enthusiasts who collected MiniDiscs or anyone looking to maintain a working MD setup, the MXD-D400X remains a capable and practical machine — though sourcing blank MiniDiscs and obtaining service for the aging hardware are realistic concerns.

Key Features

CD-R/CD-RW MP3 Playback

ATRAC Type S

4x CD>MD Hi-Speed copying (2x for MDLP)

CD TEXT compatible

Up to 320 Minutes of recording using the ATRAC-3 MD-LP

Specifications

Type
CD Player / MiniDisc Recorder Combo
CD Format Support
CD, CD-R, CD-RW, MP3
Recording Codec
ATRAC Type S
CD-to-MD Copy Speed
4x (standard), 2x (MDLP)
Max Recording Time
320 minutes (ATRAC-3 MD-LP)
CD TEXT
Compatible
Brand
Sony
Model
MXD-D400X

Pros & Cons

👍 Pros

  • Combines CD player and MiniDisc recorder in a single component, saving rack or shelf space.
  • 4x hi-speed CD-to-MD copying significantly reduces the time needed to dub albums.
  • ATRAC Type S codec provides improved audio quality over earlier ATRAC versions for MiniDisc recording.
  • Up to 320 minutes of recording per MiniDisc in LP mode makes it practical for long compilations.
  • Supports CD-R, CD-RW, and MP3 disc playback for broad format compatibility.

👎 Cons

  • MiniDisc media and blank discs are increasingly difficult to find as the format has been discontinued.
  • The unit lacks digital audio outputs commonly found on modern playback equipment.
  • As a legacy format combo unit, replacement parts and service support are essentially unavailable.
  • Recordings made in MDLP mode are not playable on older MiniDisc players that lack LP support.

Frequently Asked Questions

Yes, the MXD-D400X supports CD-R/CD-RW MP3 playback, so you can listen to MP3 compilations burned onto disc.
Using the ATRAC-3 MD-LP long-play mode, you can record up to 320 minutes on a single MiniDisc.
The unit copies at 4x speed in standard mode and 2x speed when using MDLP (long-play) recording modes.
Yes, it is CD TEXT compatible, meaning it can display track and album titles from discs that contain CD TEXT data.
It uses Sony's ATRAC Type S codec, which was an improved version of the ATRAC format designed to deliver better audio quality at lower bitrates.

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