Sony DAV-LF1, Operating Instructions Manual

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Film based software, Video based
software
DVDs can be classified as Film based or Video
based software. Film based DVDs contain the
same images (24 frames per second) that are
shown at movie theaters. Video based DVDs,
such as television dramas or sit-coms, displays
images at 30 frames (or 60 fields) per second.
Index (Super Audio CD, CD)/Video
Index (VIDEO CD)
A number that divides a track into sections to
easily locate the point you want on a VIDEO
CD, Super Audio CD, or CD. Depending on the
disc, no indexes may be recorded.
Interlace format
(Interlaced scanning)
The Interlace format is the NTSC standard
method for displaying TV images at 30 frames
per second. Each frame is scanned twice -
alternately between the even numbered scanning
lines and then odd numbered scanning lines, at
60 times per second.
Multi-angle function
Various angles of a scene, or viewpoints of the
video camera are recorded on some DVDs.
Multilingual function
Several languages for the sound or subtitles in a
picture are recorded on some DVDs.
Parental Control
A function of the DVD to limit playback of the
disc by the age of the users according to the
limitation level in each country. The limitation
varies from disc to disc; when it is activated,
playback is completely prohibited, violent
scenes are skipped or replaced with other scenes
and so on.
Playback Control (PBC)
Signals encoded on VIDEO CDs (Version 2.0)
to control playback.
By using menu screens recorded on VIDEO
CDs with PBC functions, you can enjoy playing
simple interactive programs, programs with
search functions, and so on.
Progressive format
(sequential scanning)
In contrast to the Interlace format, the
progressive format can reproduce 60 frames per
second by reproducing all scanning lines (525
lines for the NTSC system). The overall picture
quality increases and still images, text and
horizontal lines appear sharper. This format is
compatible with the 525 progressive format.
Region Code
This system is used to protect copyrights. A
region number is allocated on each DVD system
or DVD disc according to the sales region. Each
region code is shown on the system as well as on
the disc packaging. The system can play the
discs that match its region code. The system can
also play discs with the “
” mark. Even when
the region code is not shown on the DVD, the
region limit may still be activated.
Scene
On a VIDEO CD with PBC (playback control)
functions, the menu screens, moving pictures
and still pictures are divided into sections called
“scenes.”
Super Audio CD
A Super Audio CD disc can reproduce sounds
that are extremely faithful to the original sound
by use of DSD (Direct Stream Digital)
technology. This technology utilizes a sampling
frequency of 2.8224 MHz, which is 64 times that
of a conventional CD, and 1-bit quantization that
enables the disc to hold 4 times the amount of
information that a standard PCM format CD can
hold. Super Audio CDs are divided into the
following types.
• Super Audio CD (single layer disc)
This disc consists of a single HD layer*.
* High density signal layer for the Super Audio CD
• Super Audio CD (dual layer disc)
This disc consists of dual HD layers and is
capable of extended play over long periods.
Also, as the dual layer disc consists of dual HD
layers on one side only, you do not have to turn
the disc over during playback.
ALL
HD (high density) layer
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