Alpine DVI-9990, Руководство пользователя

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102
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EN
Information
About DVDs
Moreover, DVDs offer a variety of
functions.
• Multiple audio * (page 45)
Movies can be recorded in up to eight
languages. The desired language can be
selected from the remote control unit.
• Subtitles function
*
(page 47)
Movies can include subtitles in up to 32
languages. The desired subtitle
language can be selected from the
remote control unit.
• Multi angle function * (page 46)
When the DVD contains a movie shot
from multiple angles, the desired angle
can be selected from the remote control
unit.
• Multi story function *
With this function, a single movie
includes various story lines. You can
select different story lines to view
various versions of the same movie.
Operation differs from disc to disc.
Story line selection screens including
instructions appear during the movie.
Just follow the instructions.
* The functions audio languages, subtitle
languages, angles, etc., differ from disc to
disc. For details, refer to the disc’s instruc-
tions.
Music CDs and DVDs have grooves
(tracks) in which the digital data is
recorded. The data is represented as
microscopic pits recorded into the
track – these pits are read by a laser
beam to play the disc. On DVDs, the
density of the tracks and pits is twice
that of CDs, so DVDs can contain
more data in less space.
Minimum pit
length -
0.9
µ
m
1.2 mm
Track pitch -
1.6
µ
m
Minimum pit
length -
0.9
µ
m
0.6 mm
0.6 mm
Track pitch -
0.74
µ
m
CDs
DVDs
A 12 cm disc can contain one movie
or about four hours of music.
In addition, DVDs provide sharp
picture quality with vivid colors thanks
to a horizontal resolution of over 500
lines (compared to less than 300 for
VHS tape). With the addition of an
optional multi media manager (PXI-
H990), you can recreate the power
and presence of a movie theater with
Dolby Digital 5.1-channel Surround.