Are you sure that a grain filter isn't attached to inputs LEFT_EYE and RIGHT_EYE?
Seriously, maybe it's just me and the fact that I'm currently using an LCD, but I can't see how there's a problem. Her arms and hair are a bit grainy, but are you sure that isn't just the way that your DVDs are?
If so, is there a loose connection between the drive and the data cable? Maybe your computer is near a source of electrical noise? (I'm really reaching here, but I've never seen grain introduced into my video because of a DVD ripper...)
This is a block of text that can be added to posts you make. There is a 512 character limit.