DV Compression and the colour red

I have a piece of animation with some reds and oranges against green backgrounds.
When I render this using DV PAL compression, the reds and the oranges bleed, have strange interlace effects and generally look blurry...
Is there anything I can do?
My client requires DV compression and no other form will do.

>Also, is there any rule to avoid this kind of effect? Does this occur
>when certain combination of colours are chosen?
No and no. The weakness is in the compression and chroma sub-sampling, not the colors. You can even get this behavior with your white borders. For starters, take a look at the include Color Finesse plugin and check its graphs. When you play around with the respective curves, you will see how colors are translated from RGB space to YUV space. Then check out sites like Wikipedia, ITU, IBE, the MPEG authorities or anything related to broadcast specs. You should find some site that explains the YUV/YIC/Ycbr encoding scheme and the 4:1:1/4:2:0 chroma sub-sampling.
Mylenium

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