1. Problem with DVD "The Kite Runner" .3 sec audio lag start, 1.3 sec end

PVP Zen Vision W
Audio track 1
320x183
set 760 kbs
set audio 128 kbs
set volume 150%

2. Another try with "The Kite Runner" .3 sec audio lag start, 1.3 sec at end

Ipod
Audio track 1
H.264 format, 760kbs setting, 128kbs audio
Volume 150%
Did this 2 weeks ago and can't remember more details

3. More significant lag with DVD "No Country for Old Men"
Same settings as 1 above. Lag increased during movie

4. 3 other DVD's perfect using these settings and same computer

Thanks