test this file.when i play this test file with media player classic or windows media player,i can hear 5.1 dolby digital sound.however,when i play this file with bs player,i cant hear 5.1 sound.
i use same codec for all players,it is ac3 filter(latest version).
what is the problem?
test file:
http://rapidshare.com/files/10385536...est-2.wmv.html
edit:i use spdif with external decoder.