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Appendix
MP3, WMA and WAV files
Important:
• When naming an MP3/WMA/WAV file, add the
corresponding filename extension (.mp3, .wma
or .wav).
• This unit plays back files with the filename
extension (.mp3, .wma or .wav) as an MP3/
WMA/WAV file. To prevent noise and malfunc-
tions, do not use these extensions for files
other than MP3/WMA/WAV files.
• MP3 is short for MPEG Audio Layer 3 and
refers to an audio compression technology
standard.
• WMA is short for Windows Media
TM
Audio and
refers to an audio compression technology
that is developed by Microsoft Corporation.
WMA data can be encoded by using Windows
Media Player version 7 or later.
• WAV is short for waveform. It is a standard
audio file format for Windows®.
• With some applications used to encode WMA
files, this unit may not operate correctly.
• Depending on the version of Windows Media
Player used to encode WMA files, album
names and other text information may not be
correctly displayed.
• There may be a slight delay when starting play-
back of WMA files encoded with image data.
• This unit allows playback of MP3/WMA/WAV
files on CD-ROM, CD-R and CD-RW discs. Disc
recordings compatible with level 1 and level 2
of ISO9660 and with the Romeo and Joliet file
system can be played back.
• It is possible to play back multi-session com-
patible recorded discs.
• MP3/WMA/WAV files are not compatible with
packet write data transfer.
• When playing discs with MP3/WMA/WAV files
and audio data (CD-DA) such as CD-EXTRA
and MIXED-MODE CDs, both types can be
played only by switching mode between MP3/
WMA/WAV and CD-DA.
• The folder selection sequence for playback and
other operations becomes the writing
sequence used by the writing software. For this
reason, the expected sequence at the time of
playback may not coincide with the actual
playback sequence. However, there also is
some writing software which permits setting of
the playback order.
• Some audio CDs contain tracks that merge
into one another without a pause. When these
discs are converted to MP3/WMA/WAV files
and burned to a CD-R/CD-RW/CD-ROM, the
files will be played back on this player with a
short pause between each one, regardless of
the length of the pause between tracks on the
original audio CD.
MP3 additional information
• Files are compatible with the ID3 Tag Ver. 1.0,
1.1, 2.2, 2.3 and 2.4 formats for display of
album (disc title), track (track title), artist (track
artist) and comments. Ver. 2.x of ID3 Tag is
given priority when both Ver. 1.x and Ver. 2.x
exist.
• The emphasis function is valid only when MP3
files of 32, 44.1 and 48 kHz frequencies are
played back. (16, 22.05, 24, 32, 44.1, 48 kHz
sampling frequencies can be played back.)
• There is no m3u playlist compatibility.
• There is no compatibility with the MP3i (MP3
interactive) or MP3 PRO formats.
• The sound quality of MP3 files generally
becomes better with an increased bit rate. This
unit can play recordings with bit rates from 8
kbps to 320 kbps, but in order to be able to
enjoy sound of a certain quality, we recom-
mend using only discs recorded with a bit rate
of at least 128 kbps.
WMA additional information
• This unit plays back WMA files encoded by
Windows Media Player version 7, 7.1, 8 and 9.
• You can only play back WMA files in the fre-
quencies 32, 44.1 and 48 kHz.
• The sound quality of WMA files generally
becomes better with an increased bit rate. This
unit can play recordings with bit rates from 48
kbps to 320 kbps (CBR) or from 48 kbps to 384
kbps (VBR), but in order to be able to enjoy
sound of a certain quality, we recommend
using discs recorded with a higher bit rate.
• This unit doesn’t support the following for-
mats.
— Windows Media Audio 9 Professional
(5.1ch)
— Windows Media Audio 9 Lossless
— Windows Media Audio 9 Voice