if you have an external dolby digital (ac-3) decoder, you can enjoy dolby digital audio content from your dvd movies.

    however, if you do not have an external dolby digital (ac-3) decoder, you must first have a dvd-compatible drive and a set of speakers that supports up to six channels such as creative inspire 5.1 analog speakers. next, you must have a software dvd player capable of sending a compressed ac-3 spdif signal to your sound blaster audigy card for decoding, such as intervideo windvd 2000 or cyberlink powerdvd 3.0.

    in creative surround mixer, enable the dolby digital (ac-3) decode feature. for more information, refer to the creative surround mixer online help.

    in your software dvd decoder/player, enable the spdif output or a similar function.

    some software dvd decoders/players cannot decode up to 5.1 channels, but can support spdif output. in such cases, enable the spdif output function to allow sound blaster audigy to decode the dolby digital signal.