To surely carry out a resume operation whether a recording medium is exchanged or moved between apparatuses by storing a resume information designating a next reproduction start point of an optical disk record medium to a management information area of the recording medium.

When a user operates to discharge a disk at an operation part 52, if a resume function is preliminarily set by the user, a disk discharge event control part 38 records a resume information designating a next reproduction start point (previous reproduction stop point) to a TOC area 11 set at an innermost circumferential track of an MD (optical disk record medium) 1 when the MD 1 is discharged. A resume control part 39 designates a reproduction start point on the basis of the resume information stored in the TOC area 11 when the MD 1 is loaded. The resume information can be provided for each MD 1 separately from an attribute of each apparatus.