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.