Many relatively affluent North Korean homes have DVD players, with many watching foreign movies and dramas, while children whose families can afford a joystick use them for games, according to the Daily NK . But the South Korean website, which focuses on its northern neighbour, adds: The problem... is electricity; so they charge their batteries with the electricity that is available, and use the batteries to play games." It quotes an opposition source from the north as saying addiction to games is growing, with cases of children playing games so much that frustrated parents end up doing their school homework.