ekordbox is the name of software to manage music files to be played on Pioneer DJ Players.
rekordbox may be used for classifying and searching for music files stored on your computer as well as creating playlists, all of which can help improve your DJ performance.
rekordbox allows the detecting, measuring, and editing of beats, tempos (BPM), and other elements of your music files prior to a performance.
rekordbox may be used to set and store detailed point information (for cueing, looping, hot cueing, etc.) prior to a performance.
Not only can various types of point information and playlists prepared with rekordbox be used for playback on Pioneer DJ players, the playback history, number of times played, point information, etc., can also be fed back to rekordbox after playback.