However, in a market where the equilibrium price is $5 and the price floor is set at $4, there will be no effect on supply because the price floor must be set higher than the market price in order for it to have an effect on inventories.
In 1983, the portable CD player came as a boon for those who liked to listen to their choice of music while on the go.
The Philips CD303 of 1983-1984 was the first player to adopt tray loading with a sliding play mechanism. Basically as the tray came out to collect the CD, the entire player's transport system also came out as one unit. The Meridians 200 and 203 players were of this type. They were also the first to use a design in which the audio electronics were in a separate enclosure from the CD drive and pickup mechanism.