About USB Devices

About the supported USB memory standards

• Supported file formats:

• FAT 32

• Supported audio formats:

• MP3/WMA/AAC

• Maximum current:

• 1.0 A

• Supported capacities:

• 16 MB to 8 GB

• Compatibility:

• USB1.0/1.1/2.0 (maximum transfer speed is same as USB 2.0)

• Mass memory support:

• Supports USB mass storage class.

• Does not support USB hubs or multi card readers.

Supported MP3 file standards

• Supported standards:

• MPEG1/2/2.5 Audio Layer 3

• Supported sampling frequencies (kHz):

• MP3 (MPEG1 Audio Layer 3): 32, 44.1, 48

• MP3 (MPEG2 Audio Layer 3): 16, 22.05, 24

• MP3 (MPEG2.5 Audio Layer 3): 8, 11.025, 12

• Supported bit rates (kbps):

• MP3 (MPEG1 Audio Layer 3): 32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320

• MP3 (MPEG2/2.5 Audio Layer 3): 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160

• Supports VBR (Variable Bit Rate).

• Emphasis supports only 50/15ms.

• Does not support free format.

• Does not support DRM (Digital Rights Management).

• Supported channel modes:

• Stereo, Joint Stereo, Dual channels, Monaural

Supported WMA file standards

• Supported standards:

• WMA Ver. 7 to 9

• Supported sampling frequencies (kHz):

• 22.05, 24, 32, 44.1, 48

• Supported bit rates (kbps):

• WMA Ver. 7, 8: 48, 64, 80, 96, 128, 160, 192

• WMA Ver. 9: 48, 63, 64, 80, 95, 96, 127, 128, 160, 191, 192, 256, 320

• Supports 2-channel play only.

• Supports VBR (Variable Bit Rate).

• Does not support WMA9 Professional/Lossless/Voice.

• Does not support DRM (Digital Rights Management).

• Supported channel modes:

• Stereo, Monaural

About the supported AAC file standards

• Supported standards:

• MPEG-2 AAC-LC

• MPEG-4 AAC-LC

• Supported sampling frequencies (kHz):

• 8, 11.025, 12, 16, 22.05, 24, 32, 44.1, 48

• Supported bit rates (kbps):

• 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160, 192, 224, 256, 320

• Supports VBR (Variable Bit Rate).

• Does not support lossless compression.

• Does not support DRM (Digital Rights Management).

• Does not support AAC-Main/SRS/LTP.

• Does not support HE-AAC V1, HE-AAC V2.

• Supported channel modes:

• Stereo, Monaural

About ID3/WMA/AAC tags

In MP3/WMA/AAC files, you can enter textual attribute information known as ID3 tags/WMA tags/AAC tags (iTunes tag compliant) to save information such as track titles and artist names.

This unit supports ID3v.1.0, 1.1, 2.2, 2.3 and 2.4 tags.

This unit supports the ISO 8859-1, 2, 5 and 7 codes only. Use only the ISO 8859-1, 2, 5 or 7 codes to record tags. If characters not included in ISO8859-1, 2, 5 or 7 codes are recorded, they may not be readably displayed.

This unit supports the WMA tag ASF revision (v1.20.02). WMA tags using only Unicode are supported. Always use Unicode characters to enter the information.

• When Ver. 1.x and Ver. 2.x of the ID3 tags both exist, precedence is given to Ver. 2.x.

USB memory format

The control items in this standard are described below.

• Maximum number of directory layers:

• 8 layers

• Maximum number of characters for file names:

• 128 byte

• Supported characters for file names:

• A to Z, 0 to 9, and underscore (_)

• (Range of alpha-numeric ISO-8859-1)

• Number of files that can be stored in a single memory device:

• 9999

[A configuration example of an MP3/WMA/AAC-supporting USB memory]