Alpine CDE-181RM User Manual download pdf (Page 15)

14-EN

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, “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

509 files/folders (including Root Folders), and the maximum number of

folders is 255.

Playback may not be performed if a disc 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.

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.

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.

* The folder No./ folder Name will not be displayed if no readable file is

contained in the folder.

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.

Ta g

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.

Root folder

Folder MP3/WMA/AAC File

Terminology

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Alpine CDE-181RM User Manual Page 15

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