Extending M3U file format that supports navigation tasks and user interface tasks of the digital audio player

摘要

A digital audio player and a data structure and method for providing an audio playlist. The data structure includes a playlist record for each audio data file, each playlist record including a file pointer segment and an information segment having a plurality of content information fields and at least one indexing information field. A method of browsing audio file content information in an audio data player having a user interface includes providing at least one playlist including records stored in a predetermined sequence and including an information segment including content information fields and indexing information fields, outputting the content information fields to the user interface, receiving a playlist navigation signal from the user interface, and in response to the playlist navigation signal, using the indexing information fields to locate and output the content information fields for another record, the records related by the predetermined sequence and the navigation signal.