YAMAHA MD4S Multitrack Recorder MTR Tested with Case

This was found during my parents' move.
I'm not very knowledgeable about this myself, so I've created a description using AI for your reference.

The accessories are the dedicated case shown in images 7 and 8.

This is the Yamaha 4-track MD recorder MD4S.
It's a masterpiece that appeared during the transition from cassette MTRs to digital, characterized by its intuitive operation and the warm sound unique to MD.
It hasn't been used much recently, and due to decluttering my room (DIY/redecorating), I've decided to pass it on to someone who will cherish it.
[Condition]
• Exterior: There is some minor signs of use due to age, but no major scratches, and it is in relatively clean condition. (Please check the photos for details.)
• Operation: Power has been confirmed.
• *If recording and playback have been confirmed, please add Recording, playback, and operation of each fader have been confirmed.
• *If unconfirmed, to prevent issues, please state: Only power has been confirmed. Detailed operation has not been confirmed, so it is being sold as-is.
[Accessories]
• Main unit
• Power cord
• 1 SONY MD DATA disc (as pictured)
• *MD DATA is currently difficult to obtain and valuable, so emphasizing its inclusion will be appreciated!
There may be data inside, but please use it as a重ねて (overwriting/re-recording) medium.

[Shipping]
As this is a precision instrument, it will be carefully packed with bubble wrap and shipped via Mercari delivery.

Thank you.