Abstract: Audio information is recorded in units of tracks on an information storage medium on which audio information and management information that pertains to the audio information are recorded, and information indicating the playback sequence of the audio information is recorded in the management information. Furthermore, information indicating break positions of tracks with respect to the audio information is recorded in the information indicating the playback sequence.

Abstract: An elevated toy train track is formed from multiple platform sections (12, 14, 16, 18) and a stabilizing ring (48) that are attachable together to form a ring-like structure (10). Each platform section has at least two lateral sides (34, 36), where one lateral side (34) has ridges (42) and the other lateral side (36) has slots (46). During assembly, the ridges (42) on one platform section are placed in snug engagement with complementary slots (46) of an adjacent platform section, until all platform sections are joined together. The stabilizing ring (48) is attached, using threaded fasteners (60), to the joined platform sections (12, 14, 16, 18) to form the ring-like structure (10). A train track (20) is attached to the ring-like structure, or can be integrally molded to the platform sections. The structure is attachable to the central pole (64, 66) of a Christmas tree, thus providing an elevated toy train track.