When a new CD is needed, the one playing is stopped and pushed back in to the cartridge. The push-rod mechanism moves to the next CD and activates the mechanism to remove the CD from the cartridge. Cartridge CD changers are popular in cars because the cartridges can be easily removed to change CDs. The cartridges provide excellent protection for the discs. Multiple cartridges can be loaded and easily slipped in to the CD changer. To play the next disc, the playing mechanism lowers and the carousel rotates to the desired CD. The mechanism raises and engages the new disc. Because the discs are placed loosely in 5-disc carousel changers, they are best-suited for home stereo installations. To change CDs, the existing CD is lowered to the player cradle and rolled back in to the carousel. The carousel rotates until the desired CD is in position to be rolled in to the CD player mechanism. The arm then rolls the CD to the appropriate position and the CD is clamped and played. Because the CDs sit loosely in the carousel vertical carousel changers are best suited for home stereo use. If a CD rolls out of position, the carousel can jam.
