JVC KD-G644 Instructions Manual page 17

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)
12 kHz, 11.025 kHz, 8 kHz (for MPEG-2.5)
– Disc format: ISO 9660 Level 1/ Level 2, Romeo,
Joliet, Windows long file name
– Bit rate of WMA: 16 kbps — 32 kbps
(Sampling frequency: 22.05 kHz)
32 kbps — 320 kbps
(Sampling frequency: 48 kHz,
44.1 kHz, 32 kHz)
• The maximum number of characters for file/folder
names vary depending on 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 recognize a total of 512 files, 255
folders, and 8 hierarchical levels.
• 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 not based on Windows Media® Audio.
– WMA files copy-protected with DRM.
– Files which have data such as WAVE, ATRAC3, etc.
• The search function works but search speed is not
constant.
Playing MP3/WMA tracks from a USB device
• While playing from a USB device, the playback order
may differ from other players.
• This unit may be unable to play back some USB
devices or some files due to their characteristics or
recording conditions.
• Depending on the shape of the USB devices and
connection ports, some USB devices may not be
attached properly or the connection might be loose.
• Connect one USB mass storage class device to the unit
at a time. Do not use a USB hub.
• If the connected USB device does not have the correct
files, "NO FILE" appears.
• This unit can show Tag (Version 1.0, 1.1, 2.2, 2.3, or
2.4) for MP3 files and for WMA files.
• This unit can play back MP3/WMA files meeting the
conditions below:
– Bit rate of MP3: 16 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)
12 kHz, 11.025 kHz, 8 kHz (for MPEG-2.5)
– Bit rate of WMA:
16 kbps — 32 kbps
(Sampling frequency: 22.05 kHz)
32 kbps — 320 kbps
(Sampling frequency: 48 kHz, 44.1 kHz, 32 kHz)
• This unit can play back MP3 files recorded in VBR
(variable bit rate).
Continued on the next page
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