rekordbox is an application for managing music files which can be played back on a Pioneer DJ Player (i.e. CDJ-2000, CDJ-900).
rekordbox can be used to classify and search for music files stored on your computer and create playlists used for DJ performance.
rekordbox allows you to detect, measure and adjust the beats, tempos (BPM) and other elements of your music files prior to performance.
rekordbox can be used to set and store point information (for cueing, looping, hot cueing, etc.) prior to performance.
Data that has been detected and measured, as well as any points which have been set and stored using rekordbox, can be used in combination with a Pioneer DJ Player (i.e. CDJ-2000, CDJ-900) to achieve outstanding DJ performance.