MiniDisc
Videos
MiniDisc is a discontinued erasable magneto-optical disc-based data storage format offering a capacity of 60, 74, or 80 minutes of digitized audio.
MiniDisc by TDK, with AA battery for scale
The Sony MZ1, the first MiniDisc player, released in 1992.
Pioneer MiniDisc car receiver
Sony Hi-MD Recorder MZ-RH1, released 2006
Walkman
Videos
Walkman is a brand of portable audio players manufactured by Sony since 1979. It was originally introduced as a portable cassette player and later expanded to include a range of portable audio product
Sony Walkman WM 28
Obsolete but not Forgotten CD Walkman
Walkman MZ R50
2015 Sony Walkman NWZ S765