Contribute correction: MSX DISKTYDSCHRIFT NR15

  ____      _____     ____      _____   
 |  _ \\   |  ___||  |  _ \\   |  ___|| 
 | |_| ||  | ||__    | |_| ||  | ||__   
 | .  //   | ||__    | .  //   | ||__   
 |_|\_\\   |_____||  |_|\_\\   |_____|| 
 `-` --`   `-----`   `-` --`   `-----`