Terminology - Alpine CDA-117Ri Owner's Manual

played back (WMA ver. 7 , 8 and 9 are supported). Protected files are not
supported, neither are raw AAC files (using the ".aac" extension).
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 is supported.
Supported playback sampling rates and bit rates
MP3
Sampling rates:
Bit rates:
WMA
Sampling rates:
Bit rates:
AAC
Sampling rates:
Bit rates:
This device may not play back correctly depending on sampling rates.
In the USB mode, the playback time may not be correctly displayed
when a VBR (Variable Bit Rate) recorded file is played back.
ID3 tags/WMA tags
This device supports ID3 tag v1 and v2, and WMA/AAC 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/AAC 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, "No Support" is displayed.
If information contains characters other than ID3 tag information, the
audio file may not be played back.
The tag information may not be correctly displayed, depending on the
contents.
Playing back MP3/WMA/AAC
MP3/WMA/AAC files are prepared, then written to a CD-R, CD-RW using
CD-R writing software or stored to a USB Memory. A disc can hold up to
510 files/folders (including Root Folders), and the maximum number of
folders is 255. This unit can recognize at most 20 Banks (1000 files per
Bank) stored in USB Memory/Portable audio player.
Playback may not be performed if a disc or USB Memory exceeds the
limitations described above.
Do not make a file's playback time more than 1 hour.
Media supported
The media that this device can play back are CD-ROMs, CD-Rs, and
CD-RWs.
This device also can play back USB Memory media.
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.
This device also supports FAT 12/16/32 for USB Memory device.
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.
48 kHz, 44.1 kHz, 32 kHz,
24 kHz, 22.05 kHz, 16 kHz
8 - 320 kbps
48 kHz, 44.1 kHz, 32 kHz
48 - 192 kbps
48 kHz, 44.1 kHz, 32 kHz,
24 kHz, 22.05 kHz, 16 kHz, 12
kHz, 11.025 kHz, 8 kHz
16 - 320 kbps
Verify the writing order in the software's documentation. The playback
order of the folders and files is as follows.
Root folder
Folder
The folder No./ folder Name will not be displayed if no file is contained
in the folder.

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 titles, 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.
*
MP3/WMA/AAC File
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