Current Dolby® Digital programming:
Programming events in Dolby Digital have DD in the Guide information.

Choosing Dolby® Digital settings:
Select one of the following optical output options.

• Dolby Digital Only - Select this option if the stereo system or amplifier can decode only Dolby Digital and will not process Linear PCM signals. See your amplifier's owner's manual for more details on the amplifier (and see the following table).
• PCM Only - Select this option only if the stereo system or amplifier cannot decode Dolby Digital signals.
• Dolby Digital/PCM - Select this option only if the stereo system or amplifier can decode both Dolby Digital and Linear PCM signals.

Select one of the following.

• Line Mode When you use this setting, in comparison to RF Mode, the dynamic range is wider, which makes the music and loud noises louder, but voices quieter.
• RF Mode When you use this setting, in comparison with Line Mode, the dynamic range is narrower, which makes music and loud noises quieter, but voices louder.

Current Dolby® Digital Receivers:

Receiver Model	Dolby® Digital Output
4000 with AC-3 Adapter	optical and coaxial digital output
5000 with AC-3 Adapter	optical and coaxial digital output
4900	optical digital output
6000	optical digital output
DishPlayer 7100/7200	optical digital output
ViP 211/DISH 411	optical digital output
DISH 501/508 & DISH Player-DVR 510	optical digital output
DISH Player-DVR 522	optical digital output
ViP 622 DVR	optical digital and HDTV Digital Audio/Video output
DISH Player-DVR 625	optical digital output
DISH 721	optical digital output
ViP 722 DVR	optical digital and HDTV Digital Audio/Video output
DISH 811	optical digital output
DISH Player-DVR 921	optical digital output
DISH Player-DVR 942	optical digital and HDTV Digital Audio/Video output
JVC DVHS IRR	optical digital output

Dolby® Digital vs. Dolby® Surround:

	Dolby® Digital	Dolby® Surround Pro Logic
Surround channels	Stereo, full range (20 Hz - 20,000 Hz).	Mono, limited range (100 Hz - 7,000 Hz).
Low frequency effects channel	Yes (20 Hz - 120 Hz).	No.
Panning options	Multiple.	Left to right, right to left, front to back, back to front.
Channels	Six discrete; each channel can carry a different signal simultaneously.	Four derived; only one dominant signal can be decoded at a time.
Other	Improved sound imaging via "time alignment", i.e., making it sound like each speaker is the same distance from the listener.	Economical way to achieve high performance surround sound.
	Appropriate compression adjustments during low volume playback of dynamic movie soundtracks (late at night, for instance) to ensure low-level program content is retained.	Surround sound from any non-encoded stereo source.
	Decoders programmable to route low bass to channels in the system equipped with wide-range speakers or subwoofers.	Compatible with all current and future two-channel formats.
	A dramatic step forward in listener involvement. Unprecedented creative opportunities for program producers, directors, recording engineers, performers.	Represents a major step forward in sound over conventional stereo. The most widely-used surround format worldwide.

Info provided by Dolby Labs
Dolby is a registered trademark of Dolby Laboratories