Notes On Mp3 - Panasonic CQ-DVR592U Operating Instructions Manual

Notes on MP3

This unit allows you to play MP3 files recorded on CD-ROMs, CD-Rs (recordable) and CD-
RWs (rewritable). About CD-Rs and CD-RWs, see "Notes on CD-Rs/RWs" on page 59.
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What is MP3?
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MP3, short for MPEG Audio Layer-3, is a standard for compressing digital video data adopted for video CDs and
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similar media. It is one of the audio compression schemes covered by MPEG's (Motion Picture Experts Group)
41 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 imperceptible 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 MP3 file
≥ It is recommended to set the bit rate to "128 kbps or more" and "Fixed".
≥ Bit rate 8 kbps of MPEG 2 and sampling frequency 16 kHz of MPEG 2 cannot be reproduced.
≥ If set to VBR (Variable Bit Rate), the file playing time may not be displayed correctly.
≥ 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
≥ Do not record files other than MP3s 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.
≥ Use ISO 9660 file system (Extension of the ISO 9660 file systems are included. ) (
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.
≥ 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.
≥ 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.
ID3 Tag Ver. 2 and up are not supported.
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With ID3 Tag Ver. 2 and up, the song information is stored but not displayed.
≥ Packet writing software is not supported.
≥ A playlist 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"j"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 softwares or CD recorders (CD-R/RW drives).
Copyright
It is prohibited by copyright laws to copy, distribute and deliver copyrighted materials such as music without the
approval of copyright holder except enjoying yourself personally.
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CQ-DVR592U
Caution:
≥ Never assign the ".mp3" file name extension to a file that is not in the MP3 format. This may not only
produce noise from the speakers and speaker damage, but can damage your hearing.
Note:
≥ MP3 encode software and writing software are not supplied to this model.
Maximum Number of Files/Folders
≥ Maximum number of trees: 8
≥ Maximum number of files/folders: 254 (filesifolders. Root folder is not included. )
Note:
≥ If the total of files and folders exceeds 254, successful playback may not be performed.
Supported File Systems and File Names
Supported file system
ISO 9660 Level 1
ISO 9660 Level 2
Joliet*
Romeo
Apple Extension to ISO 9660
page 57). APPLE HFS
Glossary
ISO 9660
The most common international standard for the
logical format for files and directories.
APPLE HFS
The file system used by the Macintosh operating
system to organize data. (Not supported)
Multi-session
A method of adding data incrementally to a CD-R or
CD-RW in more than one recording session.
Disc-at-Once
A method of writing data in a media by just one
operation and no more writing after that.
Displayable folder names and file names
Name file and folders in accordance with the standard of each file
system. Refer to the instructions of writing software for details.
≥ This unit can display file names of up to 60 ASCII character set in scroll
mode.
*Up to 30 letters can be displayed when scrolling in the Joliet systems.
According to the standard, "à", "ç", etc. can be used. However, this
unit cannot display those letters.
≥ Characters that the unit cannot display are shown as an asterisk.
ID3 Tag
A function that allows character information (title,
artist, album title, date, etc) to be written onto the
disc. (ID3 Tag Ver. 2 and up are not supported. )
Packet writing
A method of writing data on a CD media in small
increments. (Not supported)
ASCII character set
ASCII character set consisting of A to Z, a to z, digits
0 to 9, and the following symbols: (space) ! " # $ %
& ' ( ) * + , - . / : ; < = > ? @ [ \ ] ^ _ ` { | } ~
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