Sony MZ-NH1 User Manual download pdf (Page 78)

78

To protect a recorded disc

To record-protect a disc, slide open the tab at

the side of the disc. In this position, the disc

cannot be recorded. To record again, slide the

tab back so the tab is visible.

If you have any questions or problems

concerning your recorder, please consult your

nearest Sony dealer. (If a trouble occurred when

the disc was in the recorder, we recommend that

the disc be left in the recorder when you consult

your Sony dealer so that the cause of trouble

may be better understood.)

Specifications

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 (Refer

to page 94 for details)

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. in Hi-LP

stereo

When using MDW-80 in MD mode:

Maximum 160 min. in monaural

Maximum 320 min. in LP4 stereo

Revolutions

350 rpm to 3,600 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:

Linear PCM (44.1 kHz/16 bit) — PCM

ATRAC3plus (Adaptive TRansform

Acoustic Coding 3 plus)

MD:

AT RAC

ATRAC3 — LP2/LP4

Modulation system

Hi-MD:

1-7RLL (Run Length Limited)/PRML

(Partial Response Maximum Likelihood)

MD:

EFM (Eight to Fourteen Modulation)

Frequency response

20 to 20,000 Hz ± 3 dB

Back of the disc

Recorded material is

not protected.

Tab

Recorded material is

protected.

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