Which type of MP3 files can the viewer play?

• The viewer can store up to 10,000 audio files. It supports the following audio formats without copyright protection and with a maximum file size of 200MB:
  
  

  Audio file extensions	Audio codec	Details
  .m4a	AAC (MPEG4)	Maximum bit rate: 320 kbps (8 to 48 kHz, 16 bit, stereo, mono)
  .mp3	MP3 (MPEG2.5-Layer 3)	Bit rate: 8 to 160 kbps (8 to 12 kHz, 16 bit, stereo, mono)
  	MP3 (MPEG2-Layer 3)	Bit rate: 8 to 160 kbps (16 to 24 kHz, 16 bit, stereo, mono)
  	MP3 (MPEG1-Layer 3)	Bit rate: 32 to 320 kbps (32 to 48 kHz, 16 bit, stereo, mono)

  
  Note: The viewer supports non-lossless-compliant M4A and MP3 files. Some files may not be played, even if the formats are supported.