Posted by Joshua Zyber on 09/21/08 11:31

"Mark" <mark_a_jackson@blueyonder.co.uk> wrote in message
news:FEwcf.116$mb.27@fe3.news.blueyonder.co.uk...
>> yes i have just noticed this on my R2 copy of revenge of the sith.its
>> the same
>>
>> did you manage to get a surround back channel out your amp? i have
>> yamaha rx657, and i heard noting.
>> interestingly, the THX trailier is ex, flaged, and my amp had not
>> problem identifying that

The movie was mixed for EX, but the DVD is not properly flagged. You
have to manually engage EX decoding on your receiver.

I find that it's usually best to just leave EX on all the time. Even
movies not specifically mixed for it will often matrix well into the
center back speaker.

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