Aiwa XD-DV520 - Manual (Page 36)

36
ENGLISH
The unit can play back MP3s recorded on CD-ROM, CD-R
or CD-RW discs.
Before playing back an MP3 disc, read the following notes.
Notes on MP3 discs
An MP3 file stores audio data compressed using MPEG1,
the audio layer-3 file-coding scheme.
In this manual, we refer to what, in PC terminology
, are
called "folders" and "files" as "albums" and "tracks".
Notes on playing MP3s
• An MP3 track must be recorded on a disc in the format
compliant with ISO 9660. Note however , that the unit may
not play tracks in the order they were recorded.
• The maximum allowable number of tracks and/or albums
in a disc is 900, including the root albums (directory).
• The maximum allowable depth of a nested folder is 127,
including files.
• If a disc contains audio tracks and MP3 tracks, the unit
cannot play it.
• As for multi-session discs, the unit can play up to 20
sessions.
• The unit can play only MP3 tracks which were converted
with a sampling frequency of 44.1 kHz and a fixed bit
rate of 128 kbps.
• The unit may not play MP3 tracks recorded using a packet
writing utility .
• The unit can play only MP3 tracks having a file extension
".mp3".
• It may take 30 seconds or more before the unit can start
play of MP3 tracks, depending on the number of recorded
tracks and the complexity of the album tree.
• If you play a non-MP3 track that has the ".mp3" file
extension, it will skip to the next valid track automatically .
• Digital recordings with this unit cannot be done while
playing back MP3 discs.
Notes on display indications during playback
• Up to 8 characters are displayed for the name of an album
or track.
• Characters other than uppercase letters ("A" to "Z"),
numerals ("0" to "9") and underscore ("_") may not be
displayed, or may be displayed in dif
ferent characters.
• The elapsed playing time may not be displayed correctly
for MP3 tracks.
• Depending on the condition of the recording equipment
or the CD-R/R W disc itself, a false album or track which
cannot be played on the unit may be displayed on
TV
screen.
PLAYING BACK AN MP3 DISC
Notes on creating MP3 discs
• When converting audio data to MP3
Create MP3 files with a sampling frequency of 44.1 kHz
and a fixed bit rate of 128 kbps.
• When creating MP3 discs
Do not store more than 900 albums and/or tracks in a
disc.
• To play tracks in the order they were recorded
1. Use a writing software capable of recording MP3 tracks
(files) in numerical and alphabetical order . For details
on using the software, refer to the operating
instructions supplied with the software.
2. Use only one album. (Do not create a sub-album within
an album.)
3. Include a two or three-digit number at the beginning
of each album or track name so that the albums and
tracks are played in order .
01XXXXX.mp3
02XXXXX.mp3
03XXXXX.mp3
04XXXXX.mp3
05XXXXX.mp3
1XXXXX.mp3
5XXXXX.mp3
10XXXXX.mp3
15XXXXX.mp3
20XXXXX.mp3
(The beginning numbers determine the order , therefore
the tracks shown above will be played in wrong order ,
i.e., "1", "10", "15", "20", and "5".)
Glossary
File extension:
A 3-character string added to a file name under the
Windows or DOS environment is called a "file extension".
A file extension is used mainly to identify types of files.
The
file extension for MP3 files is ".mp3".
ISO 9660:
ISO stands for the "International Organization for
Standardization". ISO 9660 determines the file structure
for the CD-ROMs. This unit can play MP3 files recorded in
the format compliant with ISO 9660.
Nesting of folders (albums):
To organize data files stored in a PC, you can store related
files in a folder . A folder can contain other folders as well
as files. For example, folder A can contain folder B, and
folder B can contain folder C; this is called "nesting of
folders".
Session:
A session is one uninterrupted section of written data on a
disc.
A multi-session disc is a disc which has more than two
sessions.