I have the AC3 filter (2.5b) installed and STILL I get no audio when playing DVDs that use AC3. This has been a LONG standing problem I've had. I'm very computer literate and think I have all the appropriate codecs installed. I know I can use VLC to play these files, but, really, this should be possible in WMP too. Everytime WMP shows the audio being DOLBY DIGITAL something, it doesn't work. Any help at solving this problem would be greatly appreciated. Thanks.