A playback device comprising: storage means for storing an information concerning the playback mode capabilities of the playback device; and setting means for setting a playback mode for 3D playback in accordance with the information concerning the playback mode capabilities of the playback device stored in the storage means, wherein the information concerning the playback mode capabilities of the playback device includes a one-plane offset capability flag indicating whether or not 3D playback is possible on the device in a one-plane offset mode, which is a mode in which one of two images obtained by shifting an image recorded on a disc in a horizontal direction is output as a left-eye image and the other is output as a right-eye image, characterized in that the information concerning the playback mode capabilities of the playback device further includes a two-plane capability flag indicating whether or not 3D playback is possible on the device in a two-plane mode, which is a mode in which a left-eye image and a right-eye image that are recorded on the disc are output as they are; and the setting means is adapted to set the playback mode for 3D playback in accordance with the capability flags wherein when the two-plane capability flag indicates that 3D playback in the two-plane mode is possible, the setting means is adapted to set the playback mode for 3D playback to the two-plane mode, and when the two-plane capability flag indicates that 3D playback in the two-plane mode is not possible and when the one-plane offset capability flag indicates that 3D playback in the one-plane offset mode is possible, the setting means is adapted to set the playback mode for 3D playback to the one-plane offset mode. storage means for storing an information concerning the playback mode capabilities of the playback device; and setting means for setting a playback mode for 3D playback in accordance with the information concerning the playback mode capabilities of the playback device stored in the storage means, wherein the information concerning the playback mode capabilities of the playback device includes a one-plane offset capability flag indicating whether or not 3D playback is possible on the device in a one-plane offset mode, which is a mode in which one of two images obtained by shifting an image recorded on a disc in a horizontal direction is output as a left-eye image and the other is output as a right-eye image, characterized in that the information concerning the playback mode capabilities of the playback device further includes a two-plane capability flag indicating whether or not 3D playback is possible on the device in a two-plane mode, which is a mode in which a left-eye image and a right-eye image that are recorded on the disc are output as they are; and the setting means is adapted to set the playback mode for 3D playback in accordance with the capability flags wherein when the two-plane capability flag indicates that 3D playback in the two-plane mode is possible, the setting means is adapted to set the playback mode for 3D playback to the two-plane mode, and when the two-plane capability flag indicates that 3D playback in the two-plane mode is not possible and when the one-plane offset capability flag indicates that 3D playback in the one-plane offset mode is possible, the setting means is adapted to set the playback mode for 3D playback to the one-plane offset mode.