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M275
File extensions
Always add a file extension “.MP3” or “.WMA”
to MP3 or WMA file by using single characters
letters. If you add a file extension other than
specified or forget to add the file extension, the
file cannot be played.
Logical format
(
File system
)
1. When writing MP3/WMA file on a CD-R disc or
CD-RW disc, please select “ISO9660 level 1, 2
or JOLIET or Romeo” as the writing software
format. Normal play may not be possible if the
disc is recorded on another format.
2. The folder name and file name can be dis
-
played as the title during MP3/WMA play but
the title must be within 28 single byte alphabeti-
cal letters and numerals
(
including an exten
-
sion
)
respectively.
3. Do not affix a name to a file inside a folder
having the same name.
Folder structure
1. A disc with a folder having more than 8 hierar-
chical levels will be impossible.
Decode Format
Sampling Rate
(kHz)
Bit-rate (kbps)
MPEG 1, 2 and 2.5 - Layer 3
MPEG-1 : 32, 44.1, 48
MPEG-2 : 16, 22.05, 24
MPEG-2.5 : 8, 11.025, 12
MPEG-1 : 32 - 320
MPEG-2 : 8 - 160
MPEG-2.5 : 8 - 160
VBR
MP3
WMA
Sampling rate
(
kHz
)
Bit-rate
(
kbps
)
48, 44.1, 32
32 - 192
Folder Level Limit : 8 Level
Max. Folder Support : 128
Max. Files Support : 254
Folder Name : Max. 28 Characters
File Name : Max. 28 Characters
CD/MP3/WMA Mode Operations
What is MP3?
MP3 is an audio compression method and clas-
sified into audio layer 3 of MPEG standards. This
audio compression method has penetrated into
PC users and become a standard format. This
MP3 features the original audio data compres-
sion to about 12 percent of its initial size with a
high quality sound. This means that about 10
music CDs can be recorded on a CD-R disc or
CD-RW disc to allow a long listening time without
having to change CDs.
What is WMA?
WMA is the abbreviation of Windows Media Au-
dio, an audio file format developed by Microsoft
Corporation.
Notes:
WMA file with DRM
(
Digital Rights Management
)
will be skipped from being playback and jump to
the next track.
Windows Media™, and the Windows
®
logo are
trademarks, or registered trademarks of Microsoft
Corporation in the United States and/or other
countries.
To disable DRM
(
Digital Rights Management
)
:
1. When using Windows Media Player 9, click
on TOOL OPTIONS MUSIC RECORD
tab, then under Recording settings, unclick the
check box for RECORD PROTECTED MUSIC.
Then, reconstruct files.
2. When using Windows Media Player 10/11, click
on TOOL OPTIONS RIP MUSIC tab, then
under Rip settings, unclick the check box for
COPY PROTECT MUSIC. Then, reconstruct
files.
Note:
Personally constructed WMA files are used at your
own responsibility.
Precautions when creating MP3/WMA
disc
Usable sampling rates and bit rates: