Alpine DVA-9965 - Manual (Page 58)

56
-EN
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.
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-H701 etc.), you can recreate the power
and presence of a movie theater with Dolby Digital 5.1-channel
Surround.
Minimum pit
length -
0.9 µm
1.2 mm
Track pitch -
1.6 µm
Minimum pit
length -
0.9 µm
0.6 mm
0.6 mm
Track pitch -
0.74 µm
CDs
DVDs
In addition, DVDs offer a variety of functions.
• Multiple audio* (page 18)
Movies can be recorded in up to eight languages. The
desired language can be selected from the remote control.
• Subtitles function* (page 19)
Movies can include subtitles in up to 32 languages. The
desired subtitle language can be selected from the remote
control.
• Multi angle function* (page 18)
When the DVD contains a movie shot from multiple angles,
the desired angle can be selected from the remote control.
• 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 instructions.