Mp3, Wma And Wav Files; Mp3 Additional Information; Wma Additional Information - Pioneer DEH P4800MP Operation Manual

MAN-DEH-P4800MP-GB.fm Page 32 Thursday, September 29, 2005 11:55 AM
Additional Information
• If you insert a CD-RW disc into this unit, time to playback will be longer than when
you insert a conventional CD or CD-R disc.
• Read the precautions with CD-R/CD-RW discs before using them.

MP3, WMA and WAV files

• MP3 is short for MPEG Audio Layer 3 and refers to an audio compression
technology standard.
• WMA is short for Windows Media™ 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
• This unit may not operate correctly depending on the application used to encode
WMA files.
• 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 playback 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 compatible recorded discs.
• MP3/WMA/WAV files are not compatible with packet write data transfer.
• The maximum number of characters which can be displayed for a file name,
including the extension (.mp3, .wma or .wav), is 64, from the first character.
• The maximum number of characters which can be displayed for a folder name is 64.
• In case of files recorded according to the Romeo file system, only the first 64
characters can be displayed.
• 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.
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 malfunctions, do not use these
extensions for files other than MP3/WMA/WAV files.
®
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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 kHz, 44.1 kHz and 48 kHz
frequencies are played back. (16 kHz, 22.05 kHz, 24 kHz, 32 kHz, 44.1 kHz, 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 recommend 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,
9 and 10.
• You can only play back WMA files in the frequencies 32 kHz, 44.1 kHz 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 formats.
– Windows Media Audio 9 Professional (5.1ch)
– Windows Media Audio 9 Lossless
– Windows Media Audio 9 Voice
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