Sony MDP-A500 - Manual (Page 24)

Glossary-
ACS/AMS Automatic Chapter Sensor/ Automatic Music Sensor is a function in the player that allows the laser beam
to sense the beginning of chapters or tracks on a disc.
CAV Discs Constant Angular Velocity (CAV) or standard-play discs rotate at a constant 1800 r/min. Each track
traced by the laser for a single rotation of the disc produces a single frame. Up to 54,000 frames make up each side of the
disc, for up to 30 minutes of play. Each frame has a number that is stored with other data on the disc. When searching
for a particular location on CAV discs, you must enter that "frame number".
Chapters Some laser discs are divided into sections, called chapters. These are analogous to tracks on CDs. Such
discs usually have a numbered list of chapters on the jacket or label. Each chapter has been numbered fur easy location
when you use Chapter Search or Repeat functions.
CLV Discs Constant Linear Velocity (CLV) or extended-play discs double maximum playing time to 60 minutes by
varying the rotational speed from a maximum of 1800 r/min to a minimum of 600 r/min as the laser beam moves away
from the center of the disc. The disc surface therefore moves past the laser head at a constant rate, and each track is
longer than its predecessor. For this reason. Variable Speed Play, Freeze Frame, and Step Play arc not possible with CLV
discs, so when searching for a scene on CLV discs you must enter the time instead of the frame number.
Digital Sound Recordings Sound translated into digital signals has a better signal-to-noise ratio. Therefore, digital
sound recordings offer a higher quality reproduction than the alternative, analog recordings (found on LPs and older
audio cassette tapes). However, some laser discs have been recorded in the higher-quality digital audio signal as well as
the conventional analog type signal. This player reproduces both signals with priority given to the digital signal when it
is encountered.
Indexes Signs marked in a track so that you can hnd a particular point on the disc easily.
MULTI AUDIO Disc Different sounds are recorded on analog and digital tracks. You can select either sound by
switching one to the other.
SAP Second Audio Programs are double soundtrack recordings found on bilingual and karaoke (sing-along)
recordings. Two completely different sound programs have been recorded on the disc. By pressing the AUDIO
MONITOR button, you can switch from one sound track to the other.
Tracks CDs and CDVs are divided into sections, called tracks. Each track has been numbered for easy location when
you use Track Search or Repeat functions. The tracks usually correspond to the selections on the disc.
?4 Additional Information