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26 Other Information
Recommendations and Information Concerning Discs
CD-R and CD-RW Discs
This player can play most CD-R and CD-RW discs. However, depending on the recorder of the discs of your
personal computer, the type of disc and recording method used, some discs might not play, or the performance
might not meet the expected standard of quality. When playing a CD-R disc, it is completely normal for the
unit to take up to 20 seconds to recognize the disc before it plays. If the disc is not recognized after a period
of 20 seconds, remove the disc, and then insert it again. If after several trials, the disc cannot be recognized,
make sure you have followed the recommendations below or try another type of disc.
• Whatever the actual recording capacity of a disc, do not fi ll it to maximum capacity.
• Use CD-R discs rather than CD-RW (re-recordable CDs), as replay of CD-RWs may sometimes not work
properly.
• Use a reliable and good quality recording software.
• Before recording on a disc, close all applications on you personal computer in order to optimize the quality
and reliability of recordings on the disc.
CD-R and CD-RW Discs with mp3 Format “Music” Files
In the case of discs that include mp3 fi les, follow not only the general recommendations for CD-R and CD-RW
discs, but also the following specifi c recommendations:
• The format of your mp3 fi les should be ISO 9660 or JOLIET. These fi les are compatible with DOS and
Windows applications as well as with Mac applications.
• Your mp3 fi les must have a name no longer than 12 characters as well as the suffi x “.mp3”. They must be
recorded in the form: title.mp3. Ensure that you do not leave spaces or use special characters such as ( . , / ,
\ , = ,+) in the name.
• Do not attempt to record protected mp3 fi les. Such fi les are coded and protected.
• Use a decompression transfer rate of at least 128 kb/sec (kilobytes/second) when recording mp3 fi les.
Sound quality with mp3 fi les basically depends on the rate of compression/ decompression you choose.
Getting audio CD quality sound requires an analog/digital sampling rate, that is conversion to mp3 format,
of at least 128 kb/sec and up to 160 kb/sec.
However, choosing higher rates, like 192 kb/sec or more, only rarely give even better sound quality.
Conversely, fi les with sampling rates below 128 kb/sec will not be played properly.
Important: The above recommendations cannot be taken as a guarantee that the DVD player will play mp3
recordings, or as an assurance of sound quality. You should note that certain technologies and methods for
mp3 fi le recording on CD-Rs prevent optimal playback of these fi les on your DVD player (that is degraded
sound quality and even, in some cases, inability of the player to read the fi le or fi les).
Information updated in December 2002
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