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A Super Audio CD looks like a normal CD. And almost
all of our SACD releases will contain a CD layer (making them a
so-called hybrid disc). This allows you to play the
disc on any existing CD player (hi-fi, walkman, in-car system, etc.),
while being able to enjoy the superior SACD quality via your new
SACD player. Similarly, you can buy and play the SACD disc now,
with the intention of acquiring an SACD player in the future.
There are currently more than 400 SACD titles available, ranging
from rock to jazz to classical, from such major labels as Sony,
EMI, Virgin, Telarc and BMG. Now Decca and Philips, and our sister
Universal company Deutsche Grammophon, will be regularly adding
major new SACD titles to the growing classical catalogue.
In addition to ordinary SACD players, a rapidly increasing number
of DVD Video players now offer SACD replay. So anybody interested
in enjoying the highest quality stereo reproduction, or experiencing
the new world of surround sound, no longer need hesitate before
investing in this format of the future.
SACD stands for Super Audio CD, developed jointly
by Sony and Philips as the successor to the CD (also a Sony/Philips
invention).
The disc uses a new digital recording technology called DSD,
standing for Direct Stream Digital. This technology
offers superior sound quality to CD via a frequency response almost
five times greater than CD and with a dynamic range of 120dB, compared
to CDs 96dB.
The increased density of the disc allows for the inclusion
of a high-resolution stereo recording, plus up to six channels of
uncompressed surround sound. (Uncompressed means that
the complete audio signal is retained, as opposed to Dolby Digital
or DTS surround tracks on DVD video, which are compressed to fit
on the disc.)
An SACD can also contain two different layers of information,
making it a so-called hybrid disc. The first layer contains
the SACD stereo and surround audio, while the second layer contains
the conventional CD recording, allowing the disc to be played in
any existing CD player (though, of course, only the CD audio will
be heard).
SACD is as easy to use as normal CD, allowing you simply
to insert the disc and press play. It does not feature
video menus nor does it require a sequence of commands before you
reach the track you want. The only choice your player may require
you to make is to choose between SACD stereo and SACD surround sound.
SACD is able to include titles and track descriptions, which
can be called up and displayed on the front panel of your SACD player.
All Decca and Philips discs will carry this information.
All SACD players are able to play existing CDs.
Although SACD uses DSD technology for storing the sound on
the disc, this does not mean that the original recording has to
be a DSD recording. High-quality PCM recordings (PCM is the name
for CD recording technology) can be transferred without loss of
quality to the DSD domain, and thus released on SACD. Typically,
these PCM recordings will be 48 or 96 kHz/24 bit recordings (as
opposed to the 44.1 kHz/16 bit limit for CD). The Decca and Philips
SACD release schedule will include both DSD and PCM recordings.
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