Ideas why dvd playback is jerky?

[Kenward Vaughan <kay_jay@earthlink.net>]

Is this an issue with the amd64 arch, or something else?  I have an AMD
5600+ cpu paired with an Nvidia 7600 GS card, which strikes me as more
than adequate to work with a DVD (my older XP 2500+ had no problems...).

The video is literally jerky, and poorly sync'd with the audio.  It
doesn't seem to matter what player I use.

I have done nothing with card settings, but do have the latest driver in
place.  Relavent parts of my xorg.conf:

-----
Section "Module"
        Load    "i2c"
        Load    "bitmap"
        Load    "ddc"
#       Load    "dri"
        Load    "extmod"
        Load    "freetype"
        Load    "glx"
        Load    "int10"
        Load    "vbe"
EndSection
...

Section "Device"
        Identifier      "nVidia Corporation G70 [GeForce 7600 GS]"
        Driver          "nvidia"
        BusID           "PCI:1:0:0"
EndSection
-----

Is there other info I could provide?

Anyone have thoughts which might help?  Should I install a 32 bit system
on this machine for these things?


Kenward
-- 
In a completely rational society, the best of us would aspire to be 
_teachers_ and the rest of us would have to settle for something less, 
because passing civilization along from one generation to the next 
ought to be the highest honor and the highest responsibility anyone 
could have.     - Lee Iacocca