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18-EN
ALPINE DHA-S690 68-09359Z17-A (EN)
Terminology
Bit rate
This is the “sound” compression rate specified for encoding. The
higher the bit rate, the higher the sound quality, but also the larger
the files.
Sampling rate
This value shows how many times per second the data is sampled
(recorded). For example, music CDs use a sampling rate of 44.1
kHz, so the sound is sampled (recorded) 44,100 times per second.
The higher the sampling rate, the higher the sound quality, but also
the larger the volume of data.
Encoding
Converting music CDs, WAVE (AIFF) files, and other sound files
into the specified audio compression format.
Tag
Song information such as track title, artist names, album names,
etc., written into MP3/WMA/AAC files.
Root folder
The root folder (or root directory) is found at the top of the file
system. The root folder contains all folders and files. It is created
automatically for all burned discs.
Formats supported
This device supports CD-ROM XA, Mixed Mode CD,
Enhanced CD (CD-Extra) and Multi-Session.
This device cannot correctly play back discs recorded with
Track At Once or packet writing.
Order of files
Files are played back in the order that the writing software
writes them to the disc. Therefore, the playback order may not
be what is expected. Verify the writing order in the software’s
documentation. The playback order of the folders and files is
as follows.
2
3
5
4
2
3
4
6
5
1
1
*
Folder MP3/WMA/AAC/DivX
®
/JPEG/ASF/WAV File
*The folder No./folder Name will not be displayed if no file is
contained in the folder.
Root
folder
Method for creating MP3/WMA/AAC files
Audio data is compressed using software with MP3/WMA/AAC
codecs. For details on creating MP3/WMA/AAC files, refer to
the user’s manual for that software.
MP3/WMA/AAC files that can be played back by this device
have the following file extensions:
MP3: “mp3”
WMA: “wma” (ver. 2, 7 and 8 are supported)
AAC: “m4a”, “aac”
There are many different versions of the AAC format. Confirm
that the software being used conforms to the acceptable
formats listed above. It’s possible that the format may be
unplayable even though the extension is valid. Playback of AAC
files encoded by iTunes version 4.8 or earlier is supported.
Supported playback sampling rates and bit rates
MP3
Sampling rates: 44.1 kHz, 32 kHz
Bit rates: 32 - 320 kbps
WMA
Sampling rates: 48 kHz, 44.1 kHz, 32 kHz
Bit rates: 48 - 192 kbps
AAC
Sampling rates: 48 kHz, 44.1 kHz, 32 kHz, 24 kHz, 22.05 kHz,
16 kHz, 12 kHz, 11.025 kHz, 8 kHz
Bit rates: 8 - 320 kbps
This device may not play back correctly depending on
sampling rates.
ID3 tags/WMA tags
This device supports ID3 tag v1 and v2, and WMA tag.
If tag data is in an MP3/WMA/AAC file, this device can display
the title (track title), artist name, and album name ID3 tag/
WMA tag data.
This device can only display single-byte alphanumeric
characters (up to 30 for ID3 tags and up to 15 for WMA tags)
and the underscore. For non-supported characters, the
display is blank.
The tag information may not be correctly displayed,
depending on the contents.
Producing MP3/WMA/AAC discs
MP3/WMA/AAC files are prepared, then written to a CD-R or
CD-RW (DVD-R/DVD-RW) using CD-R writing software. A disc
can hold up to 4,096 files/256 folders (including Root Folders).
Playback may not be performed if a disc exceeds the
limitations described above.
Media supported
The media that this device can play back are CD-ROMs,
CD-Rs, CD-RWs, DVD-R and DVD-RW.
Corresponding File Systems
This device supports discs formatted with ISO9660 Level 1 or
Level 2.
Under the ISO9660 standard, there are some restrictions to
remember.
The maximum nested folder depth is 8 (including the root
directory). The number of characters for a folder/file name is
limited.
Valid characters for folder/file names are letters A-Z (all
caps), numbers 0-9, and ‘_’ (underscore).
This device also can play back discs in Joliet, Romeo, etc.,
and other standards that conform to ISO9660. However,
sometimes the file names, folder names, etc., are not
displayed correctly.