DVR-MK I is a portable Voice Logger systems with inbuilt hard disk. It is intelligent and can simultaneously Record from phone line or any other audio sources. The unit is a self-contained device, which records all the data on a hard disk. It not only records both side conversation but also records Data and Time stamp along with dialed and calling numbers. It has inbuilt speaker and Keyboard Port for recording access and playing. The unit can be attached to a PC (Windows-XP/Vista/7) via Ethernet port and all the recorded information can be transferred on PC.