Click 'Advanced'
Then, Go to Volume and
on speaker settings and go to 'Advanced
Audio Properties' and choose '7.1 Surround Speakers'.
On the WinDVD main applet, click the right mouse button, and choose 'Setting.'
Select '8 Speaker Output'. Now you can enjoy DVD with 5.1 or 7.1(with Digital out)
channel surround sound.
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