Sony MXD-D400 - Manual (Page 5)

5 GB
Playing a disc with MP3 files
About MP3 files
MP3 (MPEG 1 Audio Layer-3) is a standard
technology and format for compressing a sound
sequence. The file is compressed to about 1/10
of its original size. Sounds outside the range of
human hearing are compressed while the sounds
we can hear are not compressed.
Playback of same MP3 files may not be
possible, depending on the recording.
The encoding method (i.e., the bit rate selected
for encoding) will affect the sound quality of the
MP3 files created. The bit rate typically used for
MP3 files is 128 kbps.
About ID3 tags
An ID3 tag is song information (such as track
name, album title, and artist name) that is
attached to MP3 files.
Notes on discs
You can play MP3 files recorded on CD-ROMs, CD-
Rs (recordable CDs), and CD-RWs (rewritable CDs).
The disc must be in the ISO 9660
*1
level 1 or level 2
format, or Joliet or Romeo in the expansion format.
You can use a disc recorded in Multi Session
*2
.
*1
ISO 9660 Format
The most common international standard for the
logical format of the files and folders on a CD-ROM.
There are several specification levels. In Level 1, file
names must be in the 8.3 format (no more than eight
characters in the name, no more than three characters
in the extension “.MP3”) and in capital letters. Folder
names can be no longer than eight characters. There
can be no more than eight nested folder levels. Level
2 specifications allow file names up to 31 characters
long.
For Joliet or Romeo in the expansion format, make
sure of the contents of the writing software, etc.
*2
Multi Session
This is a recording method that enables adding of
data using the Track-At-Once method.
Conventional CDs begin at a CD control area called
the Lead-in and end at an area called Lead-out. A
Multi Session CD has multiple sessions, with each
Lead-in to Lead-out segment regarded as a single
session.
CD-EXTRA: A format in which CD-DA (audio) data
are recorded in the tracks of session 1 and computer
data in the tracks of session 2.
Mixed CD: A format in which computer data are
recorded in the first track and CD-DA (audio) data in
the following tracks within a session.
Notes
• With format other than ISO 9660 level 1, folder
names or file names may not be displayed correctly.
• When naming, be sure to add the file extension
“.MP3” to the file name.
• If you add the extension “.MP3” to a file other than
MP3, the unit cannot recognize the file properly and
will generate random noise that could damage your
speakers.
• The following discs take a longer time to start
playback.
– a disc recorded with a complicated tree structure.
– a disc recorded in Multi Session.
Cautions when playing a disc that is
recorded in Multi Session
CD-DA (audio) data or MP3 files stored on a Multi
Session CD may be subject to some restrictions on
playback.
– If the disc begins with a CD-DA session, it is
recognized as a CD-DA (audio) disc, and playback
continues until an MP3 session is encountered.
– If the disc begins with an MP3 session, it is
recognized as an MP3 disc, and playback continues
until a CD-DA (audio) session is encountered.
– The playback range of an MP3 disc is determined by
the tree structure of files produced by analyzing of
the disc.
– A disc with a mixed CD format will be recognized as
a CD-DA (audio) disc.