1. A non-transitory storage medium, comprising: audio-visual (AV) data; at least one playlist, each playlist being information for reproducing the audio-visual (AV) data; at least one application configured to provide interactive functions with a user and/or additional functions using the AV data; and an application object comprising management information associated with the at least one application and playlist information, wherein the management information comprises an identifier of the at least one application and information on a lifecycle of the at least one application, and wherein the playlist information comprises a file name of at least one playlist to be reproduced along with the execution of the at least one application.