DTS Digital Surround has long been considered the reference audio format for standard DVD and is a required audio format for both Blu-ray and HD-DVD hardware products. DTS-HD is an optional format for all Blu-ray and HD-DVD products. DTS-HD is actually the latest extension of the original DTS Coherent Acoustics technology introduced in 1996. The unique DTS-HD core + extension design allows for DTS-HD to deliver incredible performance and flexibility to both content creators and consumers. It has the ability to encode and decode three DTS formats: DTS-HD Master Audio, DTS-HD High Resolution Audio, and DTS Digital Surround.

DTS-HD Master Audio is capable of delivering audio that is a bit-for-bit identical to the studio master. DTS-HD Master Audio delivers audio at super high variable bit rates -24.5 mega-bits per second (Mbps) on Blu-ray discs and 18.0 Mbps on HD-DVD - that are significantly higher than standard DVDs . This bit stream is so "fast" and the transfer rate is so "high" that it can deliver the Holy Grail of audio: 7.1 audio channels at 96k sampling frequency/24 bit depths that are identical to the original. With DTS-HD Master Audio, you will be able to experience movies and music, exactly as the artist intended: clear, pure, and uncompromised.

DTS-HD High Resolution Audio can deliver up to 7.1 channels of sound that is virtually indistinguishable from the original. DTS-HD High Resolution Audio delivers audio at high constant bit rates superior to standard DVDs---6.0 Mbps on Blu-ray discs and 3.0 Mbps on HD-DVD to produce outstanding sound quality. It is capable of delivering up to 7.1 channels at 96k sampling frequency/24 bit depth resolution. It allows content creators to deliver rich, high definition audio on movies where disc space may not allow for DTS-HD Master Audio.

DTS Digital Surround is the original DTS decoding format that revolutionized home theater audio. Enhanced dynamic range and improved frequency response combine to create an enveloping surround sound experience for movies and music when compared to competing audio decoding technologies available at the time. You can confidently play DTS-HD encoded discs on a Blu-ray or HD DVD player and use your existing DTS capable receiver to enjoy high quality DTS Digital Surround.