Panasonic CYVHD9500U CYVHD9500U User Guide - Page 18

E N G Playing Discs (CD/MP3) (continued) L I S H Notes on MP3 19 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-1 Audio Layer 3, MPEG-2 Audio Layer 3 LSF (Low Sampling Frequency), is a standard for compressing digital video data adopted for video CDs and similar media. It is one of the audio compression systems 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 detracting from the sound quality by eliminating big sound waves within 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 that you 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 can not be reproduced. ≥ VBR (Variable Bit Rate) is not supported. ≥ 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 a CD-R/RW ≥ Do not record files other than MP3s or unnecessary folders on a disc. If 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.) (page 63). 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. ≥ 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. ≥ A disc recorded by the packet writing software are 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"99", etc. to the file name. For details refer to the user manual of your writing software. Caution: ≥ Do not assign the ".mp3" file name extension to a file that is not in the MP3 format. This may produce noise from the speakers and cause speaker damage and can damage your hearing. 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). ≥ If a disc contains both MP3 and CD-DA, only CD-DA data is reproduced properly. (MP3 files are played but no sound is output.) 62 CY-VHD9500U E N G L I S H 20 Folder selection order/MP3 file playback order (Example) 1 Root folder (root directory) 2 [1 Folder selection In the order 1 to 6 4 [3 File selection 3 [2 In the order [1 to [4 5 6 [4 Tree 1 Tree 2 Tree 3 ........Tree 8 (Max.) Note: ≥ This unit counts the number of folders irrespective of the presence or absence of MP3 file. ≥ If the selected folder does not contain any MP3 files, the nearest MP3 files in the order of playback will be played. ≥ Playback order may be different from other MP3 players even if the same disc is used. ≥ "ROOT" appears when displaying the root folder's folder name. Maximum number of files/folders ≥ Maximum number of trees: 8 ≥ Maximum number of folders: 254 (Root folder is not included.) ≥ Maximum number of files: 512 Note: If the number of files and folders exceeds the number mentioned above, successful playback may not be performed. Supported file systems and file names Supported file system ISO 9660 Level 1/Level 2 Joliet Romeo Apple Extension to ISO 9660 Displayable folder names and file names Name files and folders in accordance with the standard of each file system. Refer to the instructions of writing software for details. ≥ The unit recognizes only ASCII character set. Chinese characters, accented French characters and accented Spanish characters will be converted into an asterisk. Note: MP3 encode software and writing software are not supplied to this model. Copyright: It is prohibited by copyright laws to copy, distribute and deliver copyrighted materials such as music without the approval of copyright holder except for personal use. No warranty: Above description complies with our investigations as of February 2004. It has no warranty for reproducibility and displayability of MP3. CY-VHD9500U 63