Disc You Can Play - Koss 525p Instruction Manual

DISC YOU CAN PLAY

While advances have been made to ensure that your disc player is compatible with the
largest number of discs possible, it cannot be guaranteed that you will be able to play
discs which might not be compliant with audio CD standards. In the case of writable and
rewritable discs, compatibility with this player depends on the DVD writer, the right
software and the disc used.
DVD-Video
Digital video discs -12 cm and 8 cm, single
or double sided, single or dual layer. DVDs
are high density optical discs on which high
quality picture and audio are recorded by
means of digital signals.
DVD-R, DVD-RW
Most DVD-R and DVD+R (one recording
only), DVD-RW and DVD+RW discs
(rewritable). Depending on the DVD writer
and discs used. Recordings using DVD-R
and DVD-RW discs must be made in Video
DVD mode. Recordings using DVD+RW
discs must be made in accordance with the
specifications for DVD+RW discs with a 4.7
GB capacity.
Video CD(VCD)
VCD stands for Video Compact Disc on
which contains video associates with still
images, audio tracks and interactive menus.
Audio CDs
Audio CDs (8 and 12 cm).
CD-R & CD-RW
Most CD-R (one recording only) and CD-RW
discs (rewritable). This player can play
most CD-R discs. CD-Rs written during a
multi session recording can also be played,
provided that the session has ended before
the disc is played (depending on the burning
software). However, depending on the CD
writer, computer and the disc used, you
may find that not all discs will play
successfully. When playing a CD-R disc, it
is completely normal for the unit to take up
to 20 seconds to recognize the disc before
starting to play. If the disc is not recognized
after a period of 20 seconds, remove the
disc, and then insert it again.
• Irrespective of the actual recording
capacity of the CD-R, do not use its
full capacity.
• CD-Rs should be preferably used
instead of CD-RWs (rewritable CDs) as,
in certain cases, CD-RW playback may
be faulty.
• Use reliable, good-quality CD burning
software.
• Close all other applications on the
computer to ensure reliable CD-R disc
recording.
MP3 Files
CD-R and CD-RW discs containing audio
files in MP3 format. As for CD-R MP3
discs, please follow all the recommendations
for CD-R above, along with the comments
below:
• Your MP3 files should be ISO 9660 or
JOLIET format. ISO 9660 format and
Joliet MP3 files are compatible with
Microsoft's DOS and Windows, as well
as with Apple Mac. These two formats
are the most widely used.
• MP3 filenames should not exceed 12
characters, and should end with the
".MP3" extension. General name
format: "Title.MP3". When composing
your title ensure that you use 8
characters or less, have no spaces in
the name, and avoid the use of special
characters including ( . , / , \ , = ,+).
• Use a decompression transfer rate of at
least 128kB/sec (kilobytes/second)
when recording MP3 files. Sound quality
with MP3 files basically depends on the
rate of compression / decompression
you choose. Obtaining audio CD quality
sound requires an analog/digital
sampling rate, that is conversion to MP3
format, of at least 44kB/sec and up to
160kB/sec. Choosing higher rates, such
as 192 kB/sec or more, only rarely
produces even better sound quality.
Conversely, files with sampling rates
below 44kB/sec will not play properly.
• Do not try recording copyright-protected
MP3 files. "Secured" files are encrypted
and code-protected to prevent illegal
copying. You must not copy such files.
Important:
The above recommendations cannot be taken as
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 file recording on CD-Rs prevent
optimal playback of these files on your DVD
player (i.e. degraded sound quality and even, in
some cases, inability of the player to read the file).
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