• Supported File System: FAT 16/32

• Playable Audio Format: MP3

• Max.Current: 500mA

• Compatibility: USB1.1/2.0 (Maximum transmit speed equivalent to USB 1.1: 12 Mbps)

• Correspondence: USB mass storage class (Playing from external HDD is not supported)

• Supported standards:
MPEG-1
MPEG-2
MPEG-2.5

• Supported sampling frequencies:
MPEG-1:32, 44.1, 48 (kHz)
MPEG-2:16, 22.05, 24 (kHz)
MPEG-2.5:11.025, 12 (kHz)

• Supported bit rate:
MPEG-1: 32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 288, 320 (kbps)
MPEG-2: 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 160 (kbps)
MPEG-2.5:8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 160 (kbps)
* Supports VBR. (64~320kbps)
* Does not support free format.

• Supported channel modes: monaural, stereo, joint, dual

MP3 files have an "ID3 Tag" that allows input of information so that data such as song title and artist can be saved.

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

The format of the USB Memory to be used must be ISO9660 Level 1 or Level 2. Control items for this standard are as follows:

• Maximum directory layers: 8 layers

• Maximum characters for file names: 128 (including "." and 3 letter file extension)

• Allowable characters for file names: A~Z, 0~9, _ (underscore)

• Number of files possible on a single memory: 3000