Compatible file formats include linear PCM WAV format, BWF (Broadcast Wave Format) that is used at broadcasting stations, and also MP3 format. As such, the user can record over long periods of time using MP3 multi-channel recording by setting multiple microphones, which is useful for purposes such as recording meetings. Furthermore, the monitor mix function allows stereo monitoring with level and pan settings. This monitor-mix can be simultaneously recorded onto stereo tracks, independent to 6-tracks. Furthermore, the DR-680MKII is capable of 2-track recording at 24bit/192kHz and can be used as a portable stereo master recorder.