Audio playing system
MiniDisc digital audio system
Laser diode properties Material: GaAlAs Wavelength: λ = 780 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
Recording and playback time
Maximum 74 minutes
Maximum 148 minutes
Revolutions
400 rpm to 900 rpm (CLV)
Error correction
Advanced Cross Interleave Reed Solomon Code (ACIRC)
Sampling frequency 44.1 kHz
Sampling rate converter
Input: 32 kHz/44.1 kHz/48 kHz
Coding
Adaptive TRansform Acoustic Coding (ATRAC)
Modulation system
EFM (Eight to Fourteen Modulation)
Number of channels 2 stereo channels
1 monaural channel
Frequency response
20 to 20,000 Hz ± 3 dB
Wow and Flutter Below measurable limit
Inputs
Microphone: stereo
Line in: stereo
Optical (Digital) in: optical (digital)
Outputs
Headphones: stereo
Line out: stereo
Power requirements
Sony AC Power Adaptor (supplied) connected at the DC IN 6 V jack:
Two LR6 (size AA) alkaline batteries (not supplied)
Battery operation time See “Battery life” (page 26)
Dimensions
Approx. 116.5⋅ 26 ⋅ 78 mm (w/h/d) (4 5/8 ⋅ 1 1/16 ⋅ 3 1/8 in.)
Mass
Approx. 220 g (7.1 oz) the recorder only Approx. 317 g (10.2 oz) incl. a recordable MD and
Supplied accessories
AC power adaptor (1)
Headphones with a remote control (1)
(1)
Dry battery case (1) Carrying pouch (1)