INFORMATION PROCESSING APPARATUS AND INFORMATION PROCESSING METHOD

摘要

The present invention relates to an information processor and an information-processing method in which a prescribed type of audio data can easily be played back from among multiple types of audio data. A file creation device creates audio files in which an audio stream of multiple groups is arranged as being divided into tracks for each group or for each set of more than one group, and information pertaining to multiple groups is arranged. The present invention can be applied to an information-processing system or the like configured from, e.g., a file creation device for creating files, a Web server for recording files created by the file creation device, and a video playback terminal for playing back the files.