Playable discs or files on discs/USB device

The system supports the following formats of files and discs.

Playable discs


  • CD-R/-RW in AUDIO CD format

  • CD-R/-RW/-ROM in DATA CD*1 format that contains the MP3 files (.mp3)*2*3 and conforms to ISO 9660*4 Level 1/Level 2 or Joliet (extended format).

Playable files on USB device

MP3 files (.mp3)*2*3, WMA files (.wma)*3*5, AAC files (.m4a/.mp4/.3gp)*3*6, WAV files (.wav)*3

*1 DATA CD that is created in Packet Write format or which has not been correctly finalized cannot be played back.

*2 MP3 (MPEG 1 Audio Layer 3) is a standard format defined by ISO/MPEG for compressed audio data. MP3 files must be in MPEG 1 Audio Layer 3 format. The MP3 PRO audio file can be played back as MP3 file.

*3 Files with copyright protection (Digital Rights Management) cannot be played back by the system.

*4 A logical format of files and folders on CD-ROMs, defined by ISO (International Organization for Standardization).

*5 WMA file in WMA DRM, WMA Lossless, or WMA PRO format cannot be played back.

*6 AAC file in AAC DRM and AAC Lossless format or which is encoded at 96 kHz cannot be played back.


  • The system will attempt to play back any data with the extensions above, even if it is not in the supported format. Playing this data may generate a loud noise which could damage your speaker system.

  • You cannot play back the following discs/files:

    • A disc that has a non-standard shape (e.g., heart, square, star)

    • A disc that has adhesive tape, paper, or a sticker attached to it

    • Files that are encrypted or protected by passwords.

Notes on CD-R/-RW

In some cases, a CD-R/-RW cannot be played back on this system due to the recording quality or physical condition of the disc, or the characteristics of the recording device and authoring software. For more information, refer to the operating instructions of the recording device.

Notes on discs

  • This product is designed to play back discs that conform to the Compact Disc (CD) standard.

  • DualDisc and some music discs encoded with copyright protection technologies do not conform to the CD standard. Therefore, these discs may not be compatible with this product.

Note on multisession disc

This system can play back continuous sessions on a disc when they are recorded in the same format as the first session. However, the playback is not guaranteed.

Notes on playable files

  • Playback may take a longer time to start when:

    • a DATA CD/USB device is recorded with a complicated tree structure.

    • the audio files in another folder have just been played back.

    • many folders or files on the USB device.

  • The system can play back a DATA CD or a USB device in the following conditions:

    • Up to a depth of 8 folders

    • Up to 256 folders

    • Up to 999 files in a disc

    • Up to 5,000 files in a USB device

    • Up to 999 files in a folder

    These numbers may vary depending on the file or folder configuration.

  • Folders that have no audio files are skipped.

  • Files transferred by a device such as a computer may not be played back in the order in which they were transferred.

  • The playback order may not be applicable depending on the software used for creating the audio file.

  • Compatibility with all encoding/writing software of the supported formats, recording devices, and recording media cannot be guaranteed.

Notes about USB devices

  • This system is not guaranteed to operate with all USB devices.

  • Do not connect the system and the USB device through a USB hub.

  • With some connected USB devices, there may be a delay before an operation is performed by this system.

  • The playback order for the system may differ from the playback order of the connected USB device.

  • Before using a USB device, make sure that no virus-ridden files are on the USB device.