Information; About Dvds - Alpine DVA-7996 Owner's Manual

Information

About DVDs

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.
CDs
Minimum pit
length -
1.2 mm
0.9 m
DVDs
Minimum pit
length -
0.6 mm
0.9 m
0.6 mm
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, digital audio
processor (PXA-H900/PXA-H510/PXA-H700), you
can recreate the power and presence of a movie
theater with Dolby Digital 5.1-channel Surround.
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Moreover, DVDs offer a variety of functions.
• Multiple audio* (page 32)
• Subtitles function* (page 33)
• Multi angle function* (page 32)
Track pitch -
1.6 m
• Multi story function*
Track pitch -
0.74 m
Movies can be recorded in up to eight languages. The
desired language can be selected from the remote control
unit.
Movies can include subtitles in up to 32 languages. The
desired subtitle language can be selected from the remote
control unit.
When the DVD contains a movie shot from multiple
angles, the desired angle can be selected from the remote
control unit.
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.
NOTE
* The functions audio languages, subtitle languages,
angles, etc., differ from disc to disc. For details, refer
to the disc's instructions.