Backside of the TDK yellow MD, and a SONY badged MD with a recording time of 74 minutes. There were capacities of 60, 74, and later 80 minutes (Hi-MD). The last MD walkman was shipped in 2011. The MZ-1 cost 750 US$ in 1992 (~1400 US$ of today) and sold poorly (50000 in the USA).
