tests...
was checked sound card, is adjusted to 5.1 as always was.
pc is plugged via RCA(spam) to amplifier.
5.1 waves with differents tones in each channel play seperateds channels.(no redirections)
playing stereo cd from dvdrom(pc) play stereo.
playing stereo sources(waves, flacs, wavpack, apes) in a.audirion, sound forge, winamp and MPClassic HC play stereo!(have others player but no need more tests in this case)
playing waves and flacs in VLC play stereo.
playing apes in VLC(only) play in 4 channels where L=Ls and R=Rs!!
the sound is very clean!
checking VLC configurations all is default, i never changed anything!
as i posted the screenshots and all configurations/infos are stereo means 'mad player' ?
cheers!