Sony DAV-X1 User Guide

that of a CD. Furthermore, the data capacity of a 
dual-layer and single-sided DVD is 8.5 GB, a 
single-layer and double-sided DVD 9.4 GB, and 
a dual-layer and double-sided DVD 17 GB.
The picture data uses the MPEG 2 format, one of 
a worldwide standard of digital compression 
technology. The picture data is compressed to 
about 1/40 of its original size. The DVD also 
uses the variable rate coding technology that 
processes allocated data according to the status 
of the picture.
The audio data is recorded in Dolby Digital as 
well as in PCM, allowing you to enjoy more 
realistic audio presence.
Furthermore, various advanced functions such 
as the multi-angle, multilingual, and Parental 
Control functions are provided with the DVD.

A DVD-RW is a recordable and rewritable disc 
that is the same size as a DVD VIDEO. The 
DVD-RW has two different modes: VR mode 
and Video mode. DVD-RWs created in Video 
mode have the same format as a DVD VIDEO, 
while discs created in VR (Video Recording) 
mode allow the contents to be programmed or 
edited.

A DVD+RW (plus RW) is a recordable and 
rewritable disc. DVD+RWs use a recording 
format that is comparable to the DVD VIDEO 
format.

A JPEG image recorded on a DATA CD. (“File” 
is an exclusive definition for this system.) A 
single file consists of a single image.

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.

HDMI is an interface that supports both video 
and audio on a single digital connection. The 
HDMI connection carries standard to high 

definition video signals and multi-channel audio 
signals to AV components such as HDMI 
equipped TVs, in digital form without 
degradation. Since the video signals are 
compatible with the current DVI (digital visual 
interface) format, HDMI jacks can be connected 
to DVI (digital visual interface) jacks by way of 
an HDMI -DVI (digital visual interface) 
converter cord. The HDMI specification 
supports HDCP (high-bandwidth digital 
contents protection), a copy protection 
technology that incorporates coding technology 
for digital video signals.

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.

Various angles of a scene, or viewpoints of the 
video camera are recorded on some DVDs.

Several languages for the sound or subtitles in a 
picture are recorded on some DVDs.

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.

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.

In contrast to the Interlace format, the 
progressive format can reproduce 60 frames per 
second by reproducing all scanning lines (525