compression ratio TOYOTA PRIUS V 2013 Accessories, Audio & Navigation (in English)

232
1. AUDIO/VIDEO SYSTEM OPERATION
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DVD video discs: Digital Versatile Disc
that holds video. DVD video discs have
adopted “MPEG2”, one of the world stan-
dards of digital compression technologies.
The picture data is compressed by 1/40 on
average and stored. Variable rate encoded
technology in which the volume of data as-
signed to the picture is changed depend-
ing on the picture format has also been
adopted. Audio data is stored using PCM
and Dolby Digital, which enables higher
quality of sound. Furt hermore, multi-angle
and multi-language features will also help
users enjoy the more advanced technolo-
gy of DVD video.
Viewer restrictions: This feature limits
what can be viewed in conformity with a
level of restrictions of the country. The lev-
el of restrictions varies depending on the
DVD video disc. Some DVD video discs
cannot be played at all, or violent scenes
are skipped or replaced with other scenes.
• Level 1: DVD video discs for children can be played.
• Level 2 - 7: DVD video discs for children and G-rated movie can be played.
• Level 8: All types of the DVD video discs can be played.
Multi-angle feature: The same scene can
be enjoyed from different angles.
Multi-language feature : The subtitle and
audio language can be selected.
Region codes : The region codes are pro-
vided on DVD players and DVD discs. If
the DVD video disc does not have the
same region code as the DVD player, you
cannot play the disc on the DVD player.
For region codes, see page 231.
Audio : This DVD player can play liner
PCM, Dolby Digital and MPEG audio for-
mat DVDs. Other decoded types cannot
be played.
Title and chapter: Video and audio pro-
grams stored in DVD video discs are divid-
ed into parts by title and chapter.
Title : The largest unit of the video and au-
dio programs stored on DVD video discs.
Usually, one movie, one album, or one au-
dio program is assigned as a title.
Chapter : A unit smaller than that of title. A
title comprises of several chapters.DVD VIDEO DISC GLOSSARY
Manufactured under license from Dolby
Laboratories. Dolby and the double-D
symbol are trademarks of Dolby Labora-
tories.
 This Item Incorporates copy protection
technology that is protected by U.S. pat-
ents and other intellectual property
rights of Rovi Corporation. Reverse
engineering and disassembly are pro-
hibited.

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1. AUDIO/VIDEO SYSTEM OPERATION
5
AUDIO/VIDEO SYSTEM
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This is the international standard for the
formatting of CD-ROM folders and files.
For the ISO 9660 format, there are 2 lev-
els of regulations.
 Level 1: The file name is in 8.3 format (8
character file names, with a 3 character
file extension. File names must be com-
posed of one-byte capital letters and num-
bers. The “_” symbol may also be
included.)
 Level 2: The file name can have up to 31
characters (including the separation mark
“.” and file extension). Each folder must
contain fewer than 8 hierarchies.
 Playlists created using “WINAMP” soft-
ware have a playlist file extension (.m3u).
 MP3 is an audio compression standard
determined by a working group (MPEG) of
the ISO (International Standard Organiza-
tion). MP3 compresses audio data to
about 1/10 the size of that on conventional
discs.
 WMA (Windows Media Audio) is an audio
compression format developed by
Microsoft
®. It compresses files into a size
smaller than that of MP3 files. The decod-
ing formats for WMA files are Ver. 7, 8 and
9.
ISO 9660 FORMAT
m3u
MP3
WMA
 Music recognition technology and
related data are provided by
Gracenote
®. Gracenote is the industry
standard in music recognition technol-
ogy and related content delivery. For
more information visit
www.gracenote.com.
 CD and music-related data from
Gracenote, Inc., copyright © 2000 to
present Gracenote. Gracenote Soft-
ware, copyright © 2000 to present
Gracenote. One or more patents owned
by Gracenote apply to this product and
service. See the Gracenote website for
a non-exhaustive list of applicable
Gracenote patents. Gracenote, CDDB,
MusicID, MediaVOCS, the Gracenote
logo and logotype, and the “Powered by
Gracenote” logo are either registered
trademarks or trademarks of Gracenote
in the United States and/or other coun-
tries.