Pioneer CLD-M450 Operating Instructions Manual page 8

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 ail players and discs which conform
to the CD VIDEO SYSTEM format.
The following systems are included in the CD VIDEO
SYSTEM:
CD VIDEO
@ CDV (CD VIDEO CDV) discs
@ LaserVision Discs (CD VIDEO LDs) containing digital
sound 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)
ACD 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.
Vlg or f bof
LASER DISC
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 special playback modes
such as still frame playback and multi-speed playback. One
side of a CAV disc can have a playback time of up to 30
minutes (for a 12-inch disc), which is equivalent to 54,000
frames. Each frame — from frame 1 to frame 54,000 — is
encoded with its own frame number.
* Playback tirne varies according to the contents of the
disc.
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CLY {*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 rprn
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 labels of these discs bear the following
mark.
Geial digital
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.
digital MULTIAUDIO or Sgl2/MULTI AUDIO
These are LaserDiscs in which the recorded 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").