Pioneer CDJ-350 Playable music file formats, About USB devices, About MP3 files, About AAC files

About USB devices

This unit supports USB mass storage class USB devices (external hard disks, portable flash memory devices, digital audio players, etc.).

	Folder layers	Max. 8 layers

	Max. number of	1 000 folders
	folders	1 000 folders
	folders

	Max. number of	10 000 files (1 000 files for files not managed by rekordbox)
	files
	files

	Supported file	FAT16, FAT32 and HFS+ (NTFS is not supported.)
	systems	FAT16, FAT32 and HFS+ (NTFS is not supported.)
	systems

When there are many folders or files, some time may be required for loading. Folders and files exceeding the limits cannot be displayed.

USB devices that cannot be used

!Optical disk type devices such as external DVD/CD drives, etc., are not supported.

!USB hubs cannot be used.

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 recorded on USB devices.

!It may happen that, when a current above the allowable level is detected in this unit’s USB port, the [USB STOP] indicator flashes, the power supply to the USB device is cut off and communications with the USB device are interrupted. To restore normal operation, disconnect the USB device from this unit. Avoid reusing USB devices for which an excess current has been detected. If normal operation is not restored (if communications cannot be estab- lished) after the above procedure is performed, try turning off this unit’s power then turning it back on.

!If multiple partitions are set for the USB device, the device may not be recognized.

!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	Bit depth	Bit rate	Sampling frequency	Encoding
Type	File extension	formats	Bit depth	Bit rate	Sampling frequency	method
		formats				method
MP3	.mp3	MPEG-1	16 bit	32 kbps to 320 kbps	32 kHz, 44.1 kHz, 48 kHz	CBR, VBR

AAC	.m4a, .aac and .mp4	MPEG-4 AAC LC	16 bit	16 kbps to 320 kbps	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 the CDJ-350, but the search and super fast search functions are slower with VBR files. If your priority is operability, 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.

!In addition to AAC files with the extension “.m4a” encoded with iTunes®, files with the extensions “.aac” and “.mp4” can also be played. Note, however, that copyright-protected AAC files pur- chased for example at the iTunes Music Store cannot be played. Also, some files may not be playable, depending on the version of iTunes used for encoding.

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