in LP4 stereo Revolutions 350 rpm to 3,000 rpm (CLV) Error correction Hi-MD: LDC (Long Distance Code)/BIS (Burst Indicator Subcode) MD: ACIRC (Advanced Cross Interleave Reed Solomon Code) Sampling frequency 44.1 kHz Sampling rate converter Input: 32 kHz/44.1 kHz/48 kHz Coding Hi-MD: ATRAC3plus (Adaptive TRansform Acoustic Coding 3 plus) MD: ATRAC ATRAC3 −− LP2/LP4 Modulation system Hi-MD: 1-7RLL (Run Length Limited)/PRML (Partial Response Maximum Likelihood) MD: EFM (Eight to Fourteen Modulation) MZ-NH700/NHF800 US and foreign patents licensed from Dolby Laboratories Licensing Corporation. in Hi-LP stereo When using MDW-80 in MD mode: Maximum 160 min. SERVICE MANUAL Ver 1.1 2004.09 MD recorder Audio playing system MiniDisc digital audio system Laser diode properties Material: GaAlAs Wavelength: λ = 790 nm Emission duration: continuous Laser output: less than 44.6 µW (This output is the value measured at a distance of 200 mm from the lens surface on the optical pick-up block with 7 mm aperture.) Recording and playback time When using HMD1G (1GB disc): Maximum 34 hours in Hi-LP stereo When using MDW-80 in Hi-MD mode: Maximum 10 hours and 10 min.
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