Cassette tapes gave new control to music fans, allowing them to create and share their own collections of songs in a cheap and easily portable format.

SAN FRANCISCO, CA – NOVEMBER 16: A cassette tape sits on a conveyor belt that is carrying recyclable materials through a sorting machine at Recology’s Recylce Central on November 16, 2016 in San Francisco, California. Recology has installed a state-of-the-art recycling system at their 200,000 square foot Recycle Central facility that is capable of increasing their daily processing of recyclable materials by 170 tons. (Photo by Justin Sullivan/Getty Images)