This unit can use USB storage devices that comply with the USB mass storage device class standard.

FAT16 or FAT32 file system format.

If the USB storage device has been partitioned, each section will be treated as an independent device.

Up to 20,000 tracks per folder can be displayed, and folders may be nested up to 16 levels deep.

USB hubs and USB storage devices with hub functions are not supported. Do not connect these devices to the unit.

USB storage devices with security function are not supported on this unit.

If you connect a USB hard disk drive to the USB port of the unit, we recommend that you use its AC adapter to power it.

Media inserted to the USB card reader may not be available in this function. Furthermore, depending on the USB storage device, proper reading of the contents may not be possible.

Our company accepts no responsibility whatsoever for the loss or damage to data stored on a USB storage device when that device is used with this unit. We recommend that you back up your important music files beforehand.

This unit supports the following music file formats. Note that sound files that are protected by copyright cannot be played on this unit.

MP3 (.mp3/.MP3):

Supported formats: MPEG-1/MPEG-2 Audio Layer 3

Supported sampling rates: 44.1 kHz, 48 kHz

Supported bitrates: Between 8 kbps and 320 kbps.

WMA (.wma/.WMA):

Supported sampling rates: 44.1 kHz, 48 kHz

Supported bitrates: Between 5 kbps and 320 kbps.

WMA Pro/Voice/WMA Lossless formats are not supported

WAV (.wav/.WAV):

WAV files include uncompressed PCM digital audio.

Supported sampling rates: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz

Quantization bit: 8 bit, 16 bit, 24 bit

AIFF (.aiff/.aif/.AIFF/.AIF):

AIFF files include uncompressed PCM digital audio.

Supported sampling rates: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz

Quantization bit: 8 bit, 16 bit, 24 bit

AAC (.aac/.m4a/.mp4/.3gp/.3g2/.AAC/.M4A/.MP4/.3GP/.3G2):

Supported formats: MPEG-2/MPEG-4 Audio

Supported sampling rates: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz

Supported bitrates: Between 8 kbps and 320 kbps.

FLAC (.flac/.FLAC):

Supported sampling rates: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz

Quantization bit: 8 bit, 16 bit, 24 bit

Apple Lossless (.m4a/.mp4/.M4A/.MP4):

Supported sampling rates: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz

Quantization bit: 16 bit, 24 bit

DSD (.dsf/.dff/.DSF/.DFF):

Supported formats: DSF/DSDIFF

Supported sampling rates: 2.8 MHz, 5.6 MHz

Dolby TrueHD (.vr/.mlp/.VR/.MLP):

Supported sampling rates: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz

Variable bit-rate (VBR) files are supported. However, playback times may not be displayed correctly.

This unit supports the gapless playback of the USB storage device in the following conditions.

When playing WAV, FLAC and Apple Lossless, and the same format, sampling frequency, channels and quantization bit rate are played continuously.