Game discs are physical media used to store video games. POGS, which stands for 'Piece of Game', is a type of game disc that was popular in the 1990s. It is a round plastic disc with a design on one side and a flat back. POGS were used in a variety of games, such as card games and board games. Counters are another type of game disc, which are usually made of cardboard or plastic and have a design on both sides. Counters are used in a variety of games, such as board games, card games, and dice games.