WHAT ISA MINIDISC?
Ultra compact size made possible by
ATRAC* technology
A
newly
developed
digital
audio
compression technology called the ATRAC
system
automatically
extracts
only the
frequencies that are actually audible to the
human ear and cuts the frequencies which
are inaudible. This compresses the amount
of information
to be recorded to 1/5 of the
normal amount.
The ATRAC
system is
based upon studies carried out in the field
of auditory psychology and does not impair
the quality of the audible sound.
* Adaptive Transform Acoustic Coding
Uuick random access
One of the great features of the MiniDisc is
that you can search for desired
tracks
quickly.
There are also quick and easy
functions for random playback, in which the
order of the tracks
can be rearranged
randomly,
and for renumbering
tracks to
play them in any order.
The limitations of MD
Recording
on the
MD
is performed
differently from that of a cassette tape or a
DAT. Therefore, the MD system is subject
to the following restrictions.
"DISC
FULL
is displayed
even if the
recordeng time does not reach the
maximum recordable
time of the disc
(60-minute or 74-minute).
"DISC FULL" is displayed when 254 tracks
are already
recorded
on a disc, without
respect to the recording time.
"DISC FULL" is displayed
even if a
disc is not fully recorded on.
If there are lots of emphasis
data in a
particulartrack,
the unit handles thedataas
index codes, and tracks are counted,
in
addition, without respect to the time and
number of tracks.