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Просмотр инструкции автомагнитолы JVC KD-R907, страница 33
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33REFERENCES
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Playing a CD-R or CD-RW
• Use only “finalized” CD-Rs or CD-RWs.
• This unit can only play back files of the same type as
those which are detected first if a disc includes both
audio CD (CD-DA) files and MP3/WMA/AAC files.
• This unit can play back multi-session discs; however,
unclosed sessions will be skipped while playing.
• Some CD-Rs or CD-RWs may not play back on this
unit because of their disc characteristics, or for the
following reasons:
– Discs are dirty or scratched.
– Moisture condensation has occurred on the lens
inside the unit.
– The pickup lens inside the unit is dirty.
– The files on the CD-R/CD-RW are written using the
“Packet Write” method.
– There are improper recording conditions (missing
data, etc.) or media conditions (stained, scratched,
warped, etc.).
• CD-RWs may require a longer readout time since the
reflectance of CD-RWs is lower than that of regular
CDs.
• Do not use the following CD-Rs or CD-RWs:
– Discs with stickers, labels, or a protective seal stuck
to the surface.
– Discs on which labels can be directly printed by an
ink jet printer.
Using these discs under high temperature or high
humidity may cause malfunctions or damage to the
unit.
Playing an MP3/WMA/AAC disc
• This unit can play back MP3/WMA/AAC files with
the extension code <.mp3>, <.wma>, or <.m4a>
(regardless of the letter case—upper/lower).
• This unit can show the names of albums, artists
(performer), and Tag (Version 1.0, 1.1, 2.2, 2.3, or
2.4) for MP3 files and show WMA/AAC Tag.
• This unit can play back MP3/WMA/AAC files meeting
the conditions below:
Bit rate of MP3/WMA/AAC: 5 kbps — 320 kbps
Sampling frequency of MP3:
– 48 kHz, 44.1 kHz, 32 kHz (for MPEG-1)
– 24 kHz, 22.05 kHz, 16 kHz (for MPEG-2)
Sampling frequency of WMA: 8 kHz — 48 kHz
Sampling frequency of AAC: 48 kHz, 44.1 kHz
• The maximum number of characters for file/folder
names is 25 characters (including <.mp3>,
<.wma>, <.m4a>); 128 characters for MP3/WMA/
AAC Tag.
• This unit can recognize a total of 20 000 files and
2 000 folders (999 files per folder). However, the
display can show until 999 folders/files.
• This unit can play back files recorded in VBR (variable
bit rate).
Files recorded in VBR have a discrepancy in the
elapsed time display, and do not show the actual
elapsed time. In particular, this difference becomes
noticeable after performing the search function.
• This unit cannot play back the following files:
– MP3 files encoded in MP3i and MP3 PRO format.
– MP3 files encoded in an inappropriate format.
– MP3 files encoded with Layer 1/2.
– WMA files encoded in lossless, professional, and
voice format.
– WMA files which are not based upon Windows
Media ® Audio.
– WMA files copy-protected with DRM.
– Files which have data such as AIFF, ATRAC3, etc.
• The search function works but search speed is not
constant.
Playing MP3/WMA/AAC/WAV tracks from a
USB device
• Connecting a USB device automatically changes the
source to “
USB FRONT/USB REAR
.”
• While playing from a USB device, the playback order
may differ from the one from other players.
• This unit may be unable to play back some USB
devices or some files due to their characteristics or
recording conditions.
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