SoundMax SM-CDM1031 - Manual (Page 20)

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The unit supports the playback of WMA files. The playback of ID3 tags for WMA format is not
guaranteed, it depends on versions and availability of Cyrillic alphabet.
WMA (Windows Media Audio) – music data compression format, created by Microsoft
Corporation. This format uses coding algorithm for compression of initial audio-record, greatly
decreasing the file size, but, saving the good sound quality even when the bit rate is low (for
example, 64 Kbit/s).
Remember that the unit may not play the tracks in order they are written on disc.
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 256 MP3 files per disc.
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.
With some CD-R or CD-RW media, data may not be properly written depending on their
manufacturing quality. In this case, data may not be reproduced correctly. High quality CD-R or
CD-RW disc is recommended.
Up to 16 characters are displayed for the name of an Album or a Track. ID3TAG version 1.x is
required.
Note that the unit may not play Tracks in the order that you wrote them to the disc.