Older Movies In Colour

I have recently noticed that older movies, in this case "North by Northwest (1959), become disturbingly "grainy" after compression. While the DVD is obviously clear the difference with the avi is much bigger than p/a "Crouching Tiger". FYI I have used 5.02 pro for "NbN" and my settings were; - 576x304 res (16:9) - Precise Bicubic A=0.60 - two pass encoding bit rate 1100 - using GMC and Bid Enc. - Did not touch Advanced Parameters. If you need more info pls tell me Used about the same settings for "Crouching Tiger" which resulted in perfect quality. I am not too familiar with all the filters of VD (v. 1.4.10) e.g should "sharpen" work for this one. TIA for any advice given.

One more thing. I made a sample using the "old" 3.11 alpha codec in low-motion and to my big surprise it turned out in excellent quality. I'm absolutely flabbergasted. Anyone with an answer, I'm more than interested?

Seems like you're comparing with 2 different post processing levels, turn post processing in DivX5 to max and see what happens. And may be the grain is caused because of you having activated "film effect" -.-

You're absolutely right, I had post processing turned to max but much to my disgust "film effect" was activated. Lucky for me this is only a playback function. Thanks for your time and trouble.