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MP3 playback
Notes on MP3
MP3 is short for MPEG Audio Layer 3 and refers to an audio compression technology standard.
This product allows playback of MP3 files on CD-ROM, CD-R or CD-RW discs.
The unit can read MP3 files written in the format compliant with ISO 9660. However it does not support the MP3 data written by
the method of packet write.
The unit can not read an MP3 file that has a file extension other than .mp3.
If you play a non- MP3 file that has the .mp3 extension, you may hear some noise.
In this manual, we refer to what are called MP3 file and folder in PC terminology as track and album, respectively.
Maximum number of directory level is 128, including the root directory. Maximum number of files and folders per disc is 1000.
The unit may not play tracks in the order of Track numbers.
The unit supports all MPEG bitrate including free format for MPEG1 audio layer 3, supports all MPEG bitrate except 8kbps and
free format for MPEG2 audio layer3 .
The unit supports 32/44.1/48 kHz sampling rate for MPEG1 audio layer 3, 32/44.1/48 kHz and 16/22.05/24 kHz sampling rate for
MPEG2 audio layer 3, and 44.1 kHz sampling rate for VBR (Variable Bit Rate).
Notes on creating your own CD-Rs or CD-RWs containing MP3 files
To enjoy high quality sound, we recommend converting to MP3 files with a sampling frequency of 44.1 kHz and a fixed bit rate of
128 kbps.
DO NOT store more than 1000 MP3 files per disc, 2000 MP3 files for USB flash (FAT 12/16).
For ISO 9660 - compliant format, the maximum allowable depth of nested folders is 8, including the root directory (folder).
When CD-R disc is used, playback is possible only for discs, which have been finalized.
Make sure that when MP3 CD-R or CD-RW is burned that it is formatted as a data disc and NOT as an audio disc.
You should not write non-MP3 files or unneeded folders along with MP3 files on the disc otherwise it takes a long time until the
unit starts to play MP3 files.