Behringer ddx3216 Instructions Manual page 20

DVD-V does indeed offer surround sound, but only on a limited scale, since
the largest data blocks are eaten up by the video material itself. Nevertheless,
it is today's most significant multi-channel medium.
DVD-A audio quality is much better than the audio quality of tracks found on
DVD-V recordings, since DVD-A recordings feature much higher sampling
rates, ranging from 44.1 kHz all the way up to 192 kHz. When working with the
sampling frequency of 96 kHz, a maximum of 6 channels in 24-bit quality can
be fit on a DVD-A. The number of channels drops to only 2 if you're working
with higher sampling rates (176.4 and 192 kHz). Storing audio tracks is done
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according to the LPCM protocol (Linear Pulse Code Modulation), DOLBY
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Digital, MPEG-2 or optionally in the DTS format. Playback times range from
65 minutes (LPCM, 192 kHz, 24 Bit, 2 channels) up to 1,550 minutes
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(DOLBY Digital, 48 kHz, 24 Bit, 6 channels).
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It is worth noting that DTS can encode up to 8 audio channels at 24 bit/
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96 kHz, and with noticeably lower data compression rate than DOLBY Digital
or MPEG-2.
SACD (Super Audio CD) is based on "DVD-9" (one of the many Digital
Versatile Disc media types available) and offers "Dual Layering", that is, there
are two separately scanable layers. The first layer corresponds to the Red
Book Standard and offers full compatibility with conventional CDs, and SACDs
can be played on all CD players.
Conversely, conventional CDs can be played on SACD players as well.
However, there are incompatibility issues with DVD ROM drives that can also
be found in stand-alone "DVD multi-players".
The second layer carries a 6-channel surround mix, a stereo mix as well as
additional data types such as texts, graphics, pictures etc., but contains no
videos.
The SACD specs are impressive: a sampling rate of 2,822.4 MHz (the
equivalent of 64x sampling rate of 44.1 kHz found in traditional CDs!) makes a
frequency range between 0 to 100 kHz with a dynamic range of 120 dB!
74 minutes of multi-channel music in 24-bit quality fit on one SACD, but there
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