C
HAPTER
T
HREE
: DVD O
PERATION
49
D V D O
P E R AT I O N
CD-R MP3 discs
In the case of CD-R MP3 discs, please follow all the recommendations for CD-R
above, plus 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, and
with Apple's Mac. These two formats are the most widely used.
•
When naming your MP3 files do not exceed 8 characters, and place ".mp3" as the file
extension.
General name format of: Title.mp3. When composing your title, make sure 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 128 kb/sec (kilobytes/second) when
recording MP3 files.
Sound quality with MP3 files 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 better sound quality. Conversely, files
with sampling rates below 128 kb/sec will not be played properly.
•
Do not try recording copyright protected MP3 files.
Certain "secured" files are encrypted and code protected to prevent illegal copying. These files
are of the following types: Windows Media
TM
(registered trade mark of Microsoft Inc) and
SDMI
M
(registered trade mark of The SDMI Foundation). You cannot copy such files.
•
Your DVD player only accepts one level of file directory.
Consequently you must choose:
- either to save all your MP3 recording files at the root of the disc;
- and/or create folders in the directory for each artist or music type (e.g.classical, rock, jazz,
etc)
•
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 file recording on CD-Rs prevent optimal playback of these
files on your DVD player (degraded sound quality and in some cases, inability of the player to
read the files).
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