The Edirol R-4 portable recorder allows for simultaneous 4-channel recording with XLR/phone combo jacks and a choice of input modes. It has a 40GB hard disk drive for extended recording time of up to 58 hours. Waveform editing functions like trim, divide, combine and merge can be done directly on the recorder. It provides 24-bit/96kHz recording quality and built-in effects, speakers, microphones and a LCD display.