Yamaha DVD-S2300 - Manual (Page 40)

NOTES ON HANDLING DISCS
36
Pan&Scan/Letterbox
In general, DVD-Video discs are produced with the inten-
tion of being viewed on a widescreen television with an
aspect ratio of 16:9. This means you can view most mate-
rial at the intended aspect ratio on a widescreen television.
Material with this ratio will not fit onto a standard televi-
sion with an aspect ratio of 4:3. Two picture styles,
“Pan&Scan” and “Letterbox,” resolve this issue.
Pan&Scan: The sides of the image are trimmed so the
picture can fill the screen.
Letterbox: Black bands appear across the top and bot-
tom of the image. The picture appears at an
aspect ratio of 16:9.
Playback control (PBC)
The term “playback control” on a Video CD or its packag-
ing indicates that certain scenes or information may
viewed interactively or navigated by menu. This unit can
play Video CDs that feature playback control.
Sampling frequency and quantized bits
When digitizing an analog audio signal, the number of
times the signal is sampled per second constitutes the sam-
pling frequency. The degree of fineness with which a
sound level is converted into a numeric value is deter-
mined by the number of quantized bits.
SILENT CINEMA
YAMAHA has developed a natural, realistic sound effect
DSP algorithm for headphones.
Parameters for headphones have been set for each sound
field so that you can enjoy accurate representations of all
sound fields.
Title/Chapter
DVD-Video discs are divided into large sections (titles),
and smaller sections (chapters). The numbers allocated to
these sections are referred to as title numbers and chapter
numbers.
Track
A track is the smallest division on DVD-Audio, CD, and
Video CD discs. It usually equates to a single song.
Virtual CINEMA DSP
YAMAHA has developed a virtual CINEMA DSP algo-
rithm that allows you to enjoy DSP sound field surround
effects without center or rear speakers—by using “virtual
rear speakers.”
• Hold discs by touching only the edges or center hole.
• Do not leave a disc in the tray (if you do not plan to
play it).
• Do not write anything on discs using a pencil or other
sharp writing tool.
• Do not use disc surface protectors (e.g., damage-resis-
tant film).
• Store discs in an appropriate case.
• Do not use any disc that has had its surface printed by a
commercially-available label printer.
• Do not expose discs to direct sunlight, high tempera-
ture or high humidity for a long period of time because
these environments might warp or otherwise damage
the disc.
• Playback of discs is generally not affected by small
particles of dust or fingerprints on their playing sur-
face. Even so, discs should be kept clean. Wipe discs
using a clean, dry cloth. Do not wipe discs in a circular
motion; wipe straight outward from the center.
• Do not clean the disc’s surface using any type of disc
cleaner, record spray, anti-static spray or liquid, or any
other chemical-based liquid, because such substances
might irreparably damage the disc’s surface.
DVD-V
VCD CD SACD DVD-A
NOTES ON HANDLING DISCS
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