JVC KD-AR270 Instructions Manual page 15

• Do not use the following CD-Rs or CD-RWs:
– Discs with stickers, labels, or protective seal
stuck to the surface.
– Discs on which labels can be directly
printed by an ink jet printer.
Using these discs under high temperatures or
high humidities may cause malfunctions or
damage to the unit.
Playing an MP3/WMA disc
• This unit can play back MP3/WMA files
with the extension code <.mp3> or <.wma>
(regardless of the letter case—upper/lower).
• This unit can show the names of albums,
artists (performer), and ID3 Tag (Version
1.0, 1.1, 2.2, 2.3, or 2.4) for MP3 files and for
WMA files.
• This unit can display only one-byte
characters. No other characters can be
correctly displayed.
• This unit can play back MP3/WMA files
meeting the conditions below:
– Bit rate: 8 kbps — 320 kbps
– Sampling frequency:
48 kHz, 44.1 kHz, 32 kHz (for MPEG-1)
24 kHz, 22.05 kHz, 16 kHz (for MPEG-2)
– Disc format: ISO 9660 Level 1/ Level 2,
Romeo, Joliet, Windows long file name
• The maximum number of characters for file/
folder names vary among the disc format used
(includes 4 extension characters—<.mp3> or
<.wma>).
– ISO 9660 Level 1: up to 12 characters
– ISO 9660 Level 2: up to 31 characters
– Romeo: up to 128 characters
– Joliet: up to 64 characters
– Windows long file name: up to 128
characters
• This unit can play back files recorded in VBR
(variable bit rate).
Files recorded in VBR have a discrepancy
in elapsed time display, and do not show
the actual elapsed time. Especially, after
performing the search function, this
difference becomes noticeable.
• This unit can recognize a total of 512 files, of
200 folders, and of 8 hierarchies.
• This unit cannot play back the following files:
– MP3 files encoded with MP3i and
MP3 PRO format.
– MP3 files encoded in an unappropriate
format.
– MP3 files encoded with Layer 1/2.
– WMA files encoded with lossless,
professional, and voice format.
– WMA files which are not based upon
®
Windows Media Audio.
– WMA files copy-protected with DRM.
– Files which have the data such as WAVE,
ATRAC3, etc.
• The search function works but search speed is
not constant.
Changing the source
• If you change the source, playback also stops
(without ejecting the disc).
Next time you select "DISC" for the playback
source, disc play starts from where it has been
stopped previously.
Ejecting a disc
• If the ejected disc is not removed within
15 seconds, the disc is automatically inserted
again into the loading slot to protect it from
dust. (Disc will not play this time.)
General settings—PSM
• If you change the "AMP GAIN" setting from
"HIGH PWR" to "LOW PWR" while the
volume level is set higher than "VOL 30," the
unit automatically changes the volume level to
"VOL 30."
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