Pioneer CDJ-900NXS - Manual (Page 6)

En 6
 Cautions on using USB devices
! Some USB devices may not operate properly. Please note that
Pioneer will accept no responsibility whatsoever for loss of data
stored by the user on USB devices or other direct or indirect prob-
lems arising due to connection of USB devices to this unit.
! If a current larger than the allowable value is detected at this unit’s
USB device insertion slot, it may happen that the [USB STOP]
indicator flashes, the supply of power to the USB device is stopped
and communications are interrupted. To restore normal operation,
disconnect the USB device from this unit. Avoid using USB devices
for which excess currents have been detected. If normal operation is
not restored using the method above (if communications cannot be
established), turn this unit’s power off then back on.
! If multiple partitions are set on the USB device, only the first partition
can be used. (When rekordbox library information is present, the
partition containing the rekordbox library information has priority.)
! USB devices equipped with flash card readers may not operate.
! Depending on the USB device you are using, the desired perfor-
mance may not be achieved.
Playable music file formats
This unit supports music files in the formats shown below.
Type File extension Compatible formats Bit depth Bit rate Sampling frequency
Encoding
method
MP3 .mp3
MPEG-1 AUDIO LAYER-3 16 bit 32 kbps to 320 kbps 32 kHz, 44.1 kHz, 48 kHz CBR, VBR
MPEG-2 AUDIO LAYER-3 16 bit 8 kbps to 160 kbps 16 kHz, 22.05 kHz, 24 kHz CBR, VBR
AAC
.m4a, .aac and
.mp4
MPEG-4 AAC LC 16 bit 16 kbps to 320 kbps
16 kHz, 22.05 kHz, 24 kHz,
32 kHz, 44.1 kHz, 48 kHz
CBR, VBR
MPEG-2 AAC LC 16 bit 16 kbps to 320 kbps
16 kHz, 22.05 kHz, 24 kHz,
32 kHz, 44.1 kHz, 48 kHz
CBR, VBR
WAV .wav WAV 16 bit, 24 bit — 44.1 kHz, 48 kHz
Uncompressed
PCM
AIFF .aif, .aiff AIFF 16 bit, 24 bit — 44.1 kHz, 48 kHz
Uncompressed
PCM
About MP3 files
MP3 files can have a constant bit rate (CBR) or a variable bit rate (VBR).
Both types of files can be played on this unit, but the search and super
fast search functions are slower with VBR files. If your priority is oper-
ability, we recommend recording MP3 files in CBR.
About AAC files
! AAC is the abbreviation of “Advanced Audio Coding”, a basic format
of audio compression technology used for MPEG-2 and MPEG-4.
! The file format and extension of AAC data depends on the applica-
tion used to create the data.
! On this unit, in addition to AAC files encoded with iTunes ® and with
the extension “.m4a”, files with the extensions “.aac” and “.mp4” files
can also be played. However, AAC files that are copyright-protected,
such as those purchased from the iTunes Store, cannot be played.
Also, depending on the version of iTunes in which the file was
encoded, it may not be possible to play the file.
About ID3 tags
The tag information types which can be registered from a music file are
ID3 tags (v1, v1.1, v2.2.0, v2.3.0, and v2.4.0) or meta tags.
About music file artwork
The file format for artwork images that can be added to music files is
JPEG (extensions: “.jpg” or “.jpeg”).
! Files larger than 800 x 800 dots cannot be displayed.
About character displays
 CD-TEXT
This unit is compatible with CD-TEXT. Titles, album names and artist
names recorded in CD-TEXT are displayed. When multiple text data is
recorded, the first text data is displayed. The supported character codes
are listed below.
! ASCII
! ISO-8859
! MS-JIS
! Mandarin Chinese character code
 MP3/AAC
When displaying track names, etc., to display characters written in local
codes other than Unicode, change the [LANGUAGE] setting.
= Changing the language (p.33)