Some regular dvd's work fine without grainy look but some Dont !?

Question

I tried playing a regular dvd through component d terminal and it looks like the screen is shaking , the Dvd is fine but i guess something is wrong in the settings but that also may not be correct as I put in another Dvd made by sony pictures and it worked fine looked great actually My 42 inch Lcd supports 1080 p and it is on that resolution ive tried configuring all the settings and still havent found the one that will let me play any Regular DVD no matter what Can anyone help me ?

Answer 1

i'm afraid we'll need to know more about your setup.  what television, and DVD player?  

Is the DVD player upconverting?  Which DVD's seem to have the problem?

do you have this problem with any other inputs?