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References
LD (Laser Disc)
Laser discs include 8- and 12-inch discs.
They can be one-sided or two-sided. There
are two video recording systems for laser
discs: Standard play (CAV) or extended
play (CLV). These types differ in respect to
recorded time available on each side of the
disc.
• Discs with video recorded in standard
play normally indicate “Standard Play
Disc CAV” or “Standard Play” on their
jackets.
• Discs with video recorded in extended
play normally indicate “Extended Play
Disc CLV” or “Extended Play” on their
jackets.
Laser discs may have digital audio signals
in addition to the conventional analog
audio system. The jackets and labels of
these discs have the digital sound symbol.
Selected laser discs have different audio
recorded on the analog and digital systems.
Either audio can be selected for playback.
The jackets and labels of these discs have
the
symbol.
CD (Compact Disc) With Audio Only
CD (compact disc) is the standard
name for one-sided digital audio 3-
and 5-inch discs. Information about
the disc is provided by a TOC (table
of contents).
CDV (Compact Disc With Video)
Compact discs with video (CDVs) are
5-inch digital audio discs which
include a video portion.
Of the total 25-minute playback time,
up to 20 minutes is conventional CD
digital audio. The remaining 5
minutes contains both the digital
audio and CLV (extended play)
video.
Discs
Identifiying
Symbols
Type of Discs
Size
Number of
recorded
sides
Audio
Identifying
Symbol
Audio
recording
system
Video
recording
system
Other
CD (Compact Disc)
Single
CD (Compact Disc)
CDV (CD with Video)
Laser Disc
COMPACT
DIGITAL AUDIO
CD VIDEO
CD VIDEO
LD
LASER
DISC
5-inch
3-inch
5-inch
12-inch,
8-inch
12-inch,
8-inch
TOC
TOC
TOC
TOC
One side
One side
One side
One or
Two sides
One or
Two sides
Digital (20
minutes max.)
Digital (74
minutes max.)
Digital (20
minutes max.)
Digital
and Analog
Digital
and Analog
Multi-Digital
Analog Only
None
None
CLV
(Extended Play)
(5 minutes max.)
CAV
(Standard Play)
CLV
(Extended Play)
CAV
(Standard Play)
CLV
(Extended Play)
LaserVision
Types of Discs That Can Be Played
The player can play back any of the disc types shown in the chart. The identifying symbols shown are
normally printed on the label or jacket of the compatible disc.
