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What is Dolby Digital?
Dolby Digital Plus promises a better home theater surround sound experience. Dolby Digital (DD, also known as Dolby AC-3 ) was later chosen as the audio encoding technology for the new Digital TV ( DTV ) standard. AC-3 audio coding allows encoding of media at bit rates as high as 6144 kbps, which is roughly 10 times the bit rate supported by Dolby Digital. According to the AC-3 standard, the maximum coded bit rate is 640 kbit/s. The system is used in many bandwidth-limited applications other than DVD-Video, such as digital TV

Dolby True HD

Dolby True HD and Digital Plus are recent decoding methods found on some newer Blu-ray discs. Most Blu-ray discs contain either a DTS HD Master Audio, or a Dolby True HD soundtrack they’re basically the successors of the DTS 5.
Dolby Digital Surround EX

What is Dolby Digital Surround EX? Dolby Digital Surround EX provides a third surround channel on Dolby Digital movie soundtracks. The cinema versions of feature films originally released in Dolby Digital Surround EX carry the matrix-encoded extra surround audio channel in subsequent DVD releases as well as in 5

When you purchase a Surround Sound Home Theater System for your Blu-Ray DVD Player or any type of LED LCD Plasma DLP HDTV from MODIA we are here to help ensure that you select the best HD Surround Sound for your Home Theater. You can Call, E-mail, or Chat and one of our Home Theater Experts and they will gladly assist you.