Sony D-NE9 Operating Instructions Manual page 7

The major specifications of the acceptable disc format are:
• Maximum directory levels: 8
• Acceptable characters for a file/folder name:
A - Z, a- z, 0 - 9, _ (underscore)
Notes
• When naming files, be sure to add the file extension "mp3" to the file name.
• If you add the extension "mp3" to a file other than an MP3 file, the player will not be able to recognize the
file properly.
• The file name does not correspond to the ID3 tag*.
* ID3 tag is a format for adding certain information (track name, album name, artist name, etc.) to MP3 files.
The usable number of groups and files
• Maximum number of groups: 100
• Maximum number of files: 400
Settings for compression and writing software
• This CD player supports MP3 files with the following specifications: transfer bit rate:
16 - 320 kbps and sampling frequencies: 32/44.1/ 48 kHz. Variable Bit Rate (VBR) is also
supported.
To compress a source for an MP3 file, we recommend setting the transfer bit rate of the
compression software to "44.1 kHz," "128 kbps," and "Constant Bit Rate."
• To record up to the maximum capacity, set to "halting of writing."
• To record at one time up to the maximum capacity on media that has nothing recorded on it,
set to "Disc at Once."
Notes on saving files on the media
• Do not save files in other formats or unnecessary folders on a disc that has MP3 files.
• When a disc is inserted, the CD player reads all the information of folders and files on that
disc. If there are many folders on the disc, it may take a long time for play to begin or for the
next file to start playback.
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