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DVD VIDEO
A disc that contains up to 8 hours of
moving pictures even though its diameter
is the same as a AUDIO CD.
The data capacity of a single-layer and
single-sided DVD VIDEO, at 4.7 GB
(Giga Byte), is 7 times that of an AUDIO
CD. Furthermore, the data capacity of a
dual-layer and single-sided DVD VIDEO
is 8.5 GB, a single-layer and double-sided
DVD VIDEO 9.4 GB, and a dual-layer
and double-sided DVD VIDEO 17 GB.
The picture data uses the MPEG 2 format,
one of the worldwide standards for digital
compression technology. The picture data
is compressed to about 1/40 of its original
size. The DVD VIDEO also uses variable
rate coding technology that changes the
data to be allocated 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 VIDEO.
DVD-RW
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.
DVD+RW
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.
Film based software, Video based
software
DVD VIDEOs can be classified as Film
based or Video based software. Film
based DVD VIDEOs contain the same
images (24 frames per second) that are
shown at movie theaters. Video based
DVD VIDEOs, such as television dramas
or sitcoms, displays images at 30 frames
(or 60 fields) per second.
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, or viewpoints of the video
camera, for a scene are recorded on some
DVD VIDEOs.
Multilingual function
Several languages for the sound or
subtitles in a picture are recorded on some
DVD VIDEOs.
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