References, What is a minidisc? minidisc system limitations, Helpful tip when attaching a label – Sharp MD-E9000H User Manual

Page 45: Types of discs

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References

- What is a MiniDisc? / MiniDisc System Limitations -

MD-E9000H

The disc is stored in a cartridge. You can handle it easily without worrying about dust,
fingerprints, etc. However, dust entering the opening of the cartridge, dirt on the
cartridge, warping, etc. may cause malfunctions. Please note the following.

To prevent recorded MiniDiscs from being
erased accidentally

Slide the accidental erase prevention tab, located on the side of the MiniDisc, in the
direction indicated by the arrow.

To add a recording, slide the tab back to its original position.

Helpful tip when attaching a label

If the label is not attached properly, the MiniDisc may jam inside the unit and it may
not be possible to remove it.

If the label peels off or partially lifts away, replace it with a new
one.

Do not put a new label on top of an existing one.

Attach the label only in the specified location.

Types of discs

There are two types of discs.

Playback-only MiniDisc:

This type of MiniDisc is used for commercially avail-
able prerecorded music. This is the same kind of opti-
cal disc as CDs. Playback is performed using an opti-
cal pickup. (Recording and editing are not possible.)

Recordable MiniDisc:

This is a “raw disc” on which recording can be per-
formed. A magneto optical disc is used. Recordings
are made using a laser and magnetic field. Repeated
recording is possible.

What is a MiniDisc?

MiniDisc System Limitations

Even if the maximum record-
ing time of a MiniDisc has not
been reached, “TOC FULL”
may be displayed.

Even if the maximum record-
ing time of a MiniDisc has not
been reached, “DISC FULL”
may be displayed.

Even if several short tracks
are erased, the remaining re-
cording time may not show
an increase.

Two tracks may not be com-
bined in editing.

The total of the recorded time
and time remaining on a disc
may not add up to the maxi-
mum possible recording time.

If recorded tracks are fast re-
versed or fast forwarded, the
sound may skip.

In the MD system, the delimiter of the recording area
on a MiniDisc is programmed in a TOC. If partial
erasing, recording and editing are repeated several
times, TOC information will fill up, even though the
number of tracks has not reached the limit (255
tracks), and further recording will be impossible. (If
you use the all erase function, this MiniDisc can be
used from the beginning.)

If there is any flaw on the MiniDisc, that part is au-
tomatically excluded from the space available for
recording. Therefore, the recording time becomes
shorter.

When the remaining recording time of a disc is dis-
played, short tracks less than 12 seconds long may
not be included in the total.

For MiniDiscs on which repeated recording and ed-
iting operations were performed, the COMBINE
function may not work.
A track recorded from a CD (digital recording) and
a track recorded from a radio or other equipment
(analogue recording) cannot be combined.

A cluster (about 2 seconds) is normally the mini-
mum unit of recording. So, even if a track is less
than 2 seconds long, it will use about 2 seconds of
space on the disc. Therefore, the time actually avail-
able for recording may be less than the remaining
time displayed.
If there are scratches on discs, those sections will
be automatically avoided (no recording will be
placed in those sections). Therefore, the recording
time will be reduced.

A MiniDisc which has been recorded or edited re-
peatedly may skip during fast reverse or fast for-
ward.

Recordable

Recording
prevented

A shutter will be used on
only one side (back).

Shutters will be used on
both sides.

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