Unusual types of gramophone records Hi-Fi was a system of proprietary records and players designed for use in automobiles, utilizing a slower play speed and high stylus pressure. With their origin stretching back to the dawn of recorded sound at the turn of the 20th century, flexible recording media have been made from a variety of materials including foil, paper, and–in the 1950s–thin flexible vinyl known as flexi discs. Thin, flexible paper-based records were briefly popularized in the 1930s by Hit of the Week Records and Durium Records. "Melody Cards" were popular in the late 1950s. They took the form of an oversized rectangular postcard
That's What Love Is Made Of at the concert, as she had retired from onstage and TV performances earlier that year for family reasons after touring caused her to have miscarriages, but she continued singing on their records as a non-touring member of The Miracles. The Miracles' "That's What Love Is Made Of" has inspired cover versions by Michael Jackson, Bobby Vee, Choker Campbell, and The Magicians, and has appeared on many Miracles "Greatest Hits" albums and CD Anthologies. The song's flip side was the popular regional Miracles hit tune, "Would I Love You", which was included on "Greatest Hits from the Beginning" but did not