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.

Tab

 

Recorded material is

Back of the disc

protected.

Recorded material is not protected.

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.)

SpecificationsAudio 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:

ATRAC

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

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