The DR-HD100 interfaces with your JVC GY-HD100 camcorder using a single FireWire cable that passes audio, video, timecode and control information. When a tape is present, each press of start and stop on your GY-HD100's record button will create an individual clip on disk. The DR-HD100 features a comprehensive backlit display, menu system and buttons allowing easy control and management. Additionally, with the JVC GY-HD100 you can monitor the DR-HD100 time code and disk space remaining in the viewfinder. You can preview clips in the GY-HD100's viewfinder or LCD monitor using the DR-HD100's playback mode.