Information reproduction apparatus and information reproduction program

A contents reproduction apparatus classifies contents reproducible by user into a group of reproduction candidates and a group of candidates added to the group of reproduction candidates and displays them, wherein the contents are moved from the added candidate group to the reproduction candidate group on predetermined conditions and an amount (ratio, conditions and the like) of contents to be moved can be adjusted arbitrarily by the user in response to input from an input unit, whereby contents groups selected previously by user and other contents groups are mixed in any ratio at user's choice of contents groups that the user desires to look at and listen to and the user can confirm what contents are mixed before the contents groups are mixed.