Pioneer AVIC-D1 Hardware Manual - Page 21

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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

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

Audio and

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