Specifications

System

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 pick-up block with 7 mm aperture.)

Recording and playback time Maximum 74 minutes (MDW-74, stereo recording)

Maximum 148 minutes (MDW-74, monaural recording)

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 mini-jack, 0.22–0.78 mV

Line in: stereo mini-jack, 69–194 mV

Optical (Digital) in: optical (digital) mini-jack

Outputs

Headphones: stereo mini-jack, maximum output level 5 mW+ 5 mW, load impedance 16 ohm

Line out: stereo mini-jack, 194 mV, load impedance 10 kilohm

General

Power requirements

Sony AC Power Adaptor (supplied) connected at the DC IN 6 V jack:

120 V AC, 60 Hz (US model)

230–240 V AC, 50/60 Hz (UK and Hong Kong model)

240 V AC, 50/60 Hz (Australia and New Zealand model)

Lithium ion rechargeable battery LIP-8 (supplied)

Two LR6 (size AA) alkaline batteries (not supplied)

Battery operation time See “Battery life” (page 26)

Dimensions

Approx. 109.5⋅ 19.7 ⋅ 77 mm (w/h/d) (4 3/8 ⋅ 25/32 ⋅ 3 1/8 in.)

Mass

Approx. 190 g (6.8 oz) the recorder only Approx. 240 g (8.5 oz) incl. a recordable MD, and LIP-8 lithium ion rechargeable battery

Supplied accessories

AC power adaptor (1)

Headphones with a remote control (1) LIP-8 lithium ion rechargeable battery (1) Dry battery case (1)

Ear pads (2) (Except for U.S. model) Carrying pouch (1)

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