1. A user-data relating apparatus for causing user data to be related to a predetermined position of continuous data, the user data being added by a user in relation to a material employed while the continuous data is recorded, the apparatus comprising: an input unit for inputting the user data added by the user with respect to a material which has been distributed to the user in relation to the material actually used in the continuous data; and a relating unit for causing the user data to be related to a position contained in the continuous data in which the material was employed based upon a corresponding relationship between the material to which the user data has been added and the material employed while the continuous data is recorded.