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
Unusual types of gramophone records with the usual address and greeting space on one side and an illustration on the other. The illustration was overlaid with a transparent plastic material into which the grooving was impressed. The recording was usually musical as the name implies. They typically played at 45 RPM. It was recommended to not write on them with a ball point pen, an invention which was just coming into common use at that time. Laminated cardboard records have been produced as integral promotional novelties on packaging, most notably on the backs of cereal boxes in the late 1960s and early 1970s. Beginning in