Alpine IDA-X001 Owner's Manual page 19

ID3 tags/WMA tags
This device supports ID3 tag v1 and v2.2.0, v2.3.0 and WMA
tag. The following files do not support compression, coding,
grouping or non-synchronization.
WMA tag is not supported for the following files, Windows Media
Audio Professional, Windows Media Audio 9 Voice or Windows
Media Audio 9 Pro Lossless.
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 and the underscore. For non-supported characters,
"No Support" is displayed.
The tag information may not be correctly displayed, depending
on the contents.
Playing back MP3/WMA/AAC
MP3/WMA/AAC files are prepared, and then written to USB
memory. A USB memory device can hold up to 10000 files/1000
folders (including Root Folders). Playback may not be
performed if a USB memory device exceeds the limitations
described above.
Media supported
This device can play back USB memory media.
Corresponding File Systems
This device supports FAT 12/16/32.
Order of tracks
The unit plays the files in the order that the writing software
writes them. Therefore, the playing order may not be the same
as the order you input. The playback order of the folders and
files is as follows. However, the folder and file playback order
differs from the folder and file number indicated on the display.
First hierarchy
Root folder
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 is found at the top of the file system. The root folder
contains all folders and files.
Second hierarchy
Third hierarchy
MP3/WMA/AAC File
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