Panasonic FULL FRONT MP3 CD PLAYER CQ-DFX972U - Manual (Page 42)

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This player allows you to play MP3 files recorded on CD-ROMs, CD-Rs (recordable)
and CD-RWs (rewritable).
What is MP3?
MP3, short for MPEG Audio Layer-3, is a standard for compressing digital video data adopted for video CDs
and similar media. It is one of the audio compression schemes covered by MPEG’s (Motion Picture Experts
Group) digital audio compression standards. What it does is reduce the number of bytes in a song \without
hurting the sound quality by means such as eliminating big sound waves within in the sound range that is im­
perceptible to the human ear. This compression allows you to reduce the contents of a conventional music CD
by a factor of around 10. This means that you can record the contents of 10 music CDs on a single CD-R or
CD-RW. (The figures refer to data recorded on a 650 MB CD-R or CD-RW at a fixed bit rate of 128 kbps and a
sampling frequency of 44.1 kHz.)
Points to Remember When Recording an MP3 Disc
□ Converting (encoding) audio data to an IViP3 fiie
o It is recommended to set the bit rate to “128 kbps or more” and “Fixed”.
o Bit rate 8 kbps of MPEG 2 and sampling frequency 16 kHz of MPEG 2 cannot be reproduced,
o If set to VBR (Variable Bit Rate), the file playing time may not be displayed correctly,
o The playback sound quality differs depending on the encoding software and the bit rate. For details, refer to
the user manual of your encoding software.
□ Recording MP3 files on CD-R/RW
o Do not record files other than IVIP3s or unnecessary folders on a disc.
If too many folders or files other than MP3s are recorded on a disc, it may take some time before playback
starts, and you may have difficulties using fast forward and fast reverse,
o Use ISO 9660 file system (Extension of the ISO 9660 file systems are included.) page 43). APPLE HFS
file system is not supported.
If they do not conform to ISO 9660 file system, the file may not play normally, or the file or folder names
may not be displayed correctly.
o Make sure to add the “.mp3” extension to each MP3 file name.
A file with a different file name extension or none at all will not play,
o Although Multi-session recording is supported, the use of Disc-at-Once is recommended.
Make sure to close the session when you finished recording on a disc,
o iD3Tags are not supported.
The song information is stored but not displayed. Discs written with ID3 Ver. 2 may not work properly,
o Packet writing software is not supported,
o A playiist function is not supported.
Record files and folders in the order in which you want them to be played. Some writing software lets you
specify the recording order by adding a prefix in the range of “01”-“09”, etc. to the file name. For details,
refer to the use manual of your writing software.
Note:
©You may encounter trouble in playing MP3s or displaying the information of MP3 files recorded with certain
writing software or CD recorders (CD-R/RW drives).
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