Pioneer LaserDisc CLD-D704 Operating Instructions Manual page 9

CD VIDEO SYSTEM ('1)
The CD VIDEO SYSTEM is the standard name for the "optical
video disc with digital audio" system that encompasses both
LDs and CDV discs.
The following mark is the standard mark for the CD VIDEO
SYSTEM and is found on all players and discs which conform
to the CD VIDEO SYSTEM format.
The following systems are included in the CD VIDEO SYSTEM:
CO VIDEO
• CDV (CD VIDEO CDV) discs
• LaserVision Discs (CD VIDEO LDs) containing digital audio
with sub-codes
• Compatible players which can play CDs and CDV discs
• Compatible players which can play CDs, CDV discs, and
LDs
CD VIDEO LDs (*4)
A CD VIDEO LD is an LD with digital audio which is encoded
with sub-codes (data such as TOC and track number data,
excluding audio and video signals).
LDs (LASERDISCS)
With this unit, only play LaserDiscs which bear the following
mark.
or
LASER D/,,_C zase, v ,s,,>n
CLV (*3) DISCS
The jackets and labels of these discs are marked with a
"Extended Play Disc CLV" or "Extended Play" indication.
Signals are recorded on these discs at a constant linear
velocity (CLV), and the rotational speed during playback varies
from 1,800 rpm for the innermost track to 600 rpm for the
outermost track. As a result, one side of a CLV disc can have
a playback time of up to 60 minutes (for a 12-inch disc), which
is twice as long as a standard play (CAV) disc.
CLV discs are encoded with time numbers which correspond
to the elapsed play time from the beginning of the disc.
* Playback time varies according to the contents of the disc.
LASERVISION DISCS WITH DIGITAL AUDIO (*6)
The jackets and lables of these discs bear the following mark.
dieit,',L or die#a/
RUDJD BOUND
These are LaserDiscs which contain digital audio signals in
addition to conventional analog audio signals. This feature
allows the high image quality of LaserDiscs to be enjoyed
together with the superior quality of digital sound. The digital
and analog audio signals are recorded on the disc using
different frequency bands.
LASERVISION MULTI AUDIO DISCS WITH DIGITAL AUDIO
The jackets and labels of these discs bear the following mark.
,.,,. diaital_H,T, A UDIO
di6iL,',t
and MULTI AUDIO v.sou_n,.,u.,,
I_IL,I I::) I I:_1
This mark is the standard mark for LaserDiscs.
Players and discs which bear the LaserVision mark are mutually
compatible as long as they conform to the same television
system.
Two types of standard LaserDisc are available -- standard
play (CAV) (*5) discs and extended play (CLV) (*3) discs --
which differ with respect to their signal recording systems.
CAV (*5) DISCS
The jackets and labels of these discs are marked with a
"Standard Play Disc CAV" or "Standard Play" indication.
Frames are recorded on these discs at a ratio of one frame per
disc revolution, and the discs are played at a fixed rotational
speed (CAV = Constant Angular Velocity) of 1,800 rpm. This
system is well suited to specia_ playback modes such as still
_rame playback and multi-speed playback. One side of a CAN/
ciisc can have a 9_ayback£me o_up to 30 minutes (for a 12-inch
disc), which is equivalent to 54,000 frames. Each frame --
from frame 1 to 54,000 -- is encoded with its own frame
number.
* Playback time varies according to the contents of the disc.
These are LaserDiscs in which the recording digital and analog
audio signals differ in content. This allows the user to enjoy
two different audio soundtracks by switching between the
digital and analog sound.
CDV (COMPACT DISC WITH VIDEO
DISCS
These are compact discs which also contain video signals. Of
the total 25-minute playback time of a CDV disc, 20 minutes
is encoded with conventional CD digital audio signals (the
"audio" part"). The remaining 5 minutes is encoded with both
video and digital audio signals (the "video part").
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