YAMAHA MD4 Mini disc Digital Multi-Track Recorder MTR MD operation confirmed

Yamaha MD4 Digital Recorder Console 4 Tracks 2-Band EQ RCA 1/4" Inputs Studio

Yamaha MD4S Multitrack Minidisc Recorder 4 Track mixing

Yamaha MD4 Multitrack MiniDisc Recorder Made in Japan Oct 96 - Working AS IS

YAMAHA MD4 Digital MD Recorder

Yamaha MD4S MD Multitrack Recorder MTR Silver Working Preowned from Japan

BOSS BR-864 Digital Multitrack Recorder 8-Track MTR w/ AC Adapter Tested Japan