The Digital Yacht''s Voyage Recorder (VDR) is intended for storing data from the NMEA 2000 network of the vessel and audio from VHF line-out or microphone amplifier on a MicroSD memory card. The software that comes with the Recorder is installing on a PC and allows GPX and CSV files to be generated with the vessel''s track and extensive information about the sailing conditions including weather depth engine and even tracks of nearby vessels with AIS. That allows reconstructing of your sailings in all details. You will see your track tracks of other vessels (with AIS) and hear VHF conversations or weather forecasts received at specific point or time.