
CDIMP31WMAIAAC Operations
MP31WMAIAAC
What is MP3?
MP3
is
an
audio compression method and
classified into audio layer 3of MPEG standards.
This audio compression method has penetrated
into
PC
users and become astandard format.
This MP3 features the original audio data
compression to about 10 percent of its initial
size with ahigh sound quality. This means that
about 10 music CDs can be recorded
on
aCD-R
disc orCD-RW disc to allow along listening time
without having to change CDs.
What is WMA?
WMA is the abbreviation of Windows Media
Audio,
an
audio file format developed by
Microsoft Corporation.
Notes:
•Ifyou
playa
file with DRM (Digital Rights
Management) for WMA remaining
ON,
no audio
is
output (The WMA indicator blinks).
•Windows Media™ ,
and
the Windows ®logo are
trademarks,
or
registered trademarks
of
Microsoft Corporation
in
the United States andlor
other countries.
•
To
disable
DRM (Digital
Rights
Management)
1.
When using Windows Media Player 9/10/11,
click
on
TOOL
-.
OPTIONS
-.
MUSIC
RECORD tab, then under Recording
settings, unclick the Check box for RECORD
PROTECTED MUSIC. Then, reconstruct
files.
Personally constructed WMA files are used
at your own responsibility.
What is AAC?
•AAC
is
an
acronym for "Advanced Audio
Coding" and refers to the audio compression
method used with video compression
standards MPEG-2 and MPEG-4.
•AAC files composed with the following
conditions can be played:
-AAC files encoded with iTunes.
-iTunes Ver. 7.0 or earlier.
-File extension ".m4a" (".M4A")
•Tracks purchased at
an
iTunes Music store,
and copyright-protected files cannot be
played.
•When playing AAC files that include image
data, additional time may
be
required before
playback begins.
•Files may not play properly, depending
on
the
iTunes version under which
an
AAC file
is
encoded.
Precautions
when
creating
MP31
WMAIAAC file
•Usable
sampling
rates
and
bit
rates
1.
MP3: Sampling rate 8
kHz-48
kHz,
Bit rate 8kbps-320 kbps IVBR
2.
WMA: Bit rate 8kbps-320 kbps
3.
AAC: Sampling rate 8
kHz-48
kHz,
Bit rate 8kbps-320 kbps IVBR
•File
extensions
1.
Always add afile extension ".MP3" (.mp3),
".WMA" (.wma) or ".M4A" (.m4a) to MP3,
WMA or AAC file by using single byte letters.
If you add afile extension other than
specified or forget to add the file extension,
the file cannot be played.
2.
Files without MP3IWMAlAAC data will not
play. The files will be played soundlessly if
you attempt to play files without MP3IWMAI
AAC data.
*
When
VBR
files
are
played,
the
play
time
display
may
differ
the
play location.
*
When
MP3IWMAlAAC files
are
played, alittle
no
sound
part
is
caused between tunes.
•
Logical
format
(File
system)
1.
When writing MP3IWMAlAAC file
on
aCD-R
disc or CD-RW disc, please select "IS09660
level 1, 2 or JOLIET or Romeo or APPLE
ISO" 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
displayed as the title during MP3IWMAlAAC
play but the title must be within 64 single
byte alphabetical letters and numerals
(including an extension).
3.
Do not affix aname to afile inside afolder
having the same name.
•
Folder
structure
1.
Adisc with afolder having more than 8
hierarchical levels will be impossible.
DXZ585USB 19