JVC KD-G531 - Инструкция по эксплуатации - Страница 23

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23

Playing a CD-R or CD-RW

•  Use only “finalized” CD-Rs or CD-RWs.
•  This unit can play back only files of the same type 

which are first detected if a disc includes both audio 
CD (CD-DA) files and MP3/WMA 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 occurs on the lens inside 

the unit.

–  The pickup lens inside the unit is dirty.
–  CD-R/CD-RW on which the files are written with 

“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 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 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 inappropriate 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 AIFF, ATRAC3, 

etc.

•  The search function works but search speed is not 

constant.

Changing the source

•  If you change the source, playback also stops.
  Next time you select “CD” for the playback source, 

disc play starts from where it has been stopped 
previously.