Before the battle between CDs and MP3s, there was a rivalry during the 1960s between the four-track and the eight-track tape. Four-track tapes were invented in the early 1960s by Earl Muntz, an entrepreneur from California. Later, Bill Lear designed the eight-track tape. This latter invention was similar in size to the four-track tape, but it could store and play twice as many songs. Lear had close ties with the motor company Ford, and he convinced them to include eight-track players in their vehicles, which definitely helped the eight-track tape to achieve a high level of popularity. Soon after, they were introduced into homes, and the four-track tape all but disappeared.The main difference between the four-track and eight-track tape was

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