Pioneer MJ-D508 - Manual (Page 8)

____ Storing and labeling MDs
When you're not playing a nninidisc, put the disc cartridge
back in the case for storage. Avoid storing or leaving discs
in very hot or humid areas, such as in a car in summer.
Also avoid leaving discs in direct sunlight, or in places
where sand or grit might get into the disc cartridge.
Recordable MDs come with self-adhesive labels to stick on
the disc cartridge to tell you what's recorded on the disc.
Always stick the label in the area provided, avoiding the
disc shutter and the edges of the disc.
If the disc label starts to peel off at the corners, remove
the label and replace it with a fresh one—don't simply
stick another label on top of the old one.
Protecting an MD against
____ accidental erasure
Once you've recorded a disc, it's a good idea to protect
it against accidental erasure by sliding the tab on the
side of the disc to the open position.
If you want to erase or re-record the disc, simply slide
the tab back to the closed position before loading the
disc into the recorder.
Analog and digital recording
Whatever you record onto an MD is stored on the disc as
digital data (in other words, numbers). This is what we
mean when we say that MD is a digital format. However,
what you feed into the MJ-D508 to record can be either
analog (such as the output from a turntable or a tuner), or
digital (such as the direct digital output from a CD player,
or another MD recorder).
If you record an analog signal, the recorder has to first
change it into a digital form before writing it onto the disc.
If you're recording from another digital format, like a CD, it
makes sense to just record the digital data directly. This is
usually not a problem, but there are a couple of points to
bear in mind.
All digital audio has something called a 'sampling rate',
which is measured in kHz (kilohertz). The quality of the
final sound depends to a large extent on this: the higher
the better.
Compact discs have a sampling frequency of 44.1 kHz,
which happens to be the same as MDs. This means you
shouldn't run into problems making digital recordings of
CDs or other MDs (although see Copying restrictions
below for exceptions to this).
Other digital sources you may come across (DAT, digital
satellite and dvd ) often use different sampling rates—
specifically, 32kHz and 48kHz. The MJ-D508 can handle
these too, and, at the time of writing, these are by far the
most common sampling rates around. There is, however,
a trend towards higher sampling rates. Some DVD discs
and DAT tapes are recorded at 96kHz. The MJ-D508
cannot handle this rate, and you'll have to record via the
analog terminals of the DVD or DAT recorder to the analog
inputs of the MJ-D508.
____ Copying restrictions
You may run into problems making digital copies of some
sources, even when the sampling rate is compatible.
Some DVD discs disable the DVD player's digital output to
prevent illegal digital copying (you can still record via the
analog outputs though).
Another restriction on digital copying comes from some­
thing called SCMS, which stands for Serial Copy Manage­
ment System. This stops you making multiple-generation
digital recordings and is aimed at preventing illegal digital
copying of copyright material. The number of generations
that SCMS will let you make depends on the source.
CD MD MD
Digital connection Digital connection
Digital audio from CD, DVD or DAT can be copied
digitally for one generation only.
\ \ I / \ \ /
I Satellite 1I md md | md |
Digital connection Digital connection Digital connection
Audio from digital satellite can usually be copied
digitally for two generations. (Sometimes just one
generation is possible.)
]
Any source[==j> | MD MD J MD ~|
Analog
connection Digital connection Digital connection
A recording made from any source via analog inputs
can be digitally copied once only.