Yamaha CD-S3000 Mode D'emploi page 28

Playable disc format
■ About MP3 and WMA discs
You can play back MP3 and WMA files recorded on a
CD-R or CD-RW with similar uses as a music CD.
MP3
MP3 (MPEG-1 Audio Layer-3) is a standard technology
and format for compressing an audio sequence into a
small-sized file. However, the original level of sound
quality is preserved during playback.
Notes
• This unit plays back MP3 files in alphanumeric order.
• Up to 648 folders and files (combined) and up to 299 folders are
recognized; however, some folders and files may not be
recognized depending on their directory structure.
• Depending on recording conditions such as recording software
settings, this unit may not be able to play back the disc or files
in the order they were recorded.
• This unit is compatible with a sampling frequency of 44.1 kHz.
• This unit is compatible with a bitrate of 32, 40, 48, 56, 64, 80,
96, 112, 128, 160, 192, 224, 256, or 320 kbps. Variable bitrate is
not supported.
• The disc must be ISO9660 compatible.
• The text data contained in the files are not displayed on this
unit.
WMA
WMA (Windows Media Audio) is a Microsoft file format
for encoding digital audio files similar to MP3 although
WMA can compress files at a higher rate than MP3.
Notes
• This unit plays back WMA files in alphanumeric order.
• Up to 648 folders and files (combined) and up to 299 folders are
recognized; however, some folders and files may not be
recognized depending on their directory structure.
• This unit is compatible with a sampling frequency of 44.1 kHz.
• This unit is compatible with a bitrate of 48, 64, 80, 96, 128, 160,
or 192 kbps. Variable bitrate is not supported.
• The disc must be ISO9660 compatible.
• Copyright-protected WMA files cannot be played back with
this unit.
• The text data contained in the files are not displayed on this
unit.
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■ Handling compact discs
• Always handle a disc with care so that its surface is not
scratched.
• Compact discs are rarely worn out during playback, but
damage to the disc surface when the disc is being
handled can adversely affect the disc playback.
• Be sure to use a felt-tip pen or similar writing tool
when writing on the label side of a disc. Do not use a
ball-point pen, pencil, or other hard-tipped writing
tools as these may damage the disc and may adversely
affect the disc playback.
• Do not warp discs.
• When a disc is not currently being used, remove it from
this unit and store it in an appropriate case.
• When removing or storing a disc, be careful not to
scratch the playing surface.
• Compact discs are not affected by small particles of
dust or fingerprints on their playing surface, but even
so they must be kept clean. Wipe the disc surface with
a clean, cry cloth. Do not wipe the disc surface with a
circular motion; wipe it straight outward from the
center.
• Do not try to clean the disc surface with any type of
disc cleaner, record spray, anti-static spray or liquid, or
any other chemical-based liquid as such substances
may irreparably damage the disc surface.
• Do not expose discs to direct sunlight, high
temperature, or high humidity for a long period of time
as these conditions may warp or otherwise damage the
disc.
• To play back an 8-cm (3-inch) compact disc, place it in
the inner recessed area of the disc tray. Do not put a
normal 12-cm CD on top of an 8-cm CD.