Pioneer AVIC-X1R - Manual (Page 22)

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Appendix
• Files are compatible with the ID3 Tag Ver. 1.0
and Ver. 1.1 formats for display of album (disc
title), track (track title) and artist (track artist).
• Only when MP3 files of 32, 44.1 and 48 kHz fre-
quencies are played back, the emphasis func-
tion is valid. (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 format.
• The sound quality of MP3 files generally
becomes better with increasing bit rate. This
unit can play recordings with bit rates from 8
kbps to 320 kbps, but in order to be able to
enjoy a certain sound quality, it is recom-
mended to use only discs recorded with a bit
rate of at least 128 kbps.
Important:
• When naming an MP3 file, add the corre-
sponding filename extension (.mp3).
• This unit plays back files with the filename
extension (.mp3) as MP3 files. To prevent noise
and malfunctions, do not use this extension for
files other than MP3 files.
About folders and MP3 files
• An outline of a CD-ROM with MP3 files on it is
shown below. Subfolders are shown as folders
in the folder currently selected.
q First level
w Second level
e Third level
Notes:
• This unit assigns folder numbers. The user can
not assign folder numbers.
• If you are using a folder that does not contain
an MP3 file, the folder itself will display but you
will not be able to see any files in the folder.
• MP3 files in up to 8 tiers of folders can be
played back. However, there is a delay in the
start of playback on discs with numerous tiers.
For this reason we recommend creating discs
with no more than 2 tiers.
• It is possible to play back up to 253 items from
a folder on a single disc.
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