●Do not expose the CD to direct sun-
light.
● CDs that are in poor condition or are
dirty, scratched or covered with finger-
prints may not work properly.
● The following CDs may not work prop-
erly:
● Copy control compact discs (CCCD)
● Recordable compact discs (CD-R)
● Rewritable compact discs (CD-RW)
● Do not use the following CDs as they
may cause the CD player to malfunc-
tion:
● 3.1 in (8 cm) discs with an adapter
● CDs that are not round
● CDs with a paper label
● CDs that are warped, scratched, or
have abnormal edges
● This audio system can only play pre-
recorded CDs. It has no capability to
record or burn CDs.
● If the CD cannot be played, one of the
following messages will be displayed.
CHECK DISC ●
Confirm that the CD is inserted cor-
rectly (the label side is facing up,
etc.) .
● Confirm that the CD is not bent or
warped and it is free of scratches.
PRESS EJECT
This is an error due to excessive tem-
perature inside the player. Remove the
CD by pressing the EJECT button. After
a short time, reinsert the CD. The CD
can be played when the temperature of
the player returns to normal.
UNPLAYABLE
The file is unplayable in this audio sys-
tem (only MP3 or WMA (if so equipped)
CD) .Compact disc with MP3 or WMA
Terms ● MP3 — MP3 is short for Moving Pictures
Experts Group Audio Layer 3. MP3 is the
most well-known compressed digital audio
file format. This format allows for near “CD
quality” sound, but at a fraction of the size of
normal audio files. MP3 conversion of an
audio track from CD-ROM can reduce the
file size by approximately a 10:1 ratio with
virtually no perceptible loss in quality. MP3
compression removes the redundant and
irrelevant parts of a sound signal that the
human ear doesn’t hear.
● WMA — Windows Media Audio (WMA)* is a
compressed audio format created by Micro-
soft as an alternative to MP3. The WMA
codec offers greater file compression than
the MP3 codec, enabling storage of more
digital audio tracks in the same amount of
space when compared to MP3s at the same
level of quality.
● Bit rate — Bit rate denotes the number of
bits per second used by a digital music file.
The size and quality of a compressed digital
audio file is determined by the bit rate used
when encoding the file.
4-46Monitor, climate, audio, phone and voice recognition systems
