I don't know if this has been brought up before but here I go:

Whenever using colorbars and other solid color material graphics, I get vertical "bars" all across the screen that is slightly off color, say about 8 pixels wide every 16 pixel. It's kind of annoying and it seems to be a typical codec problem. When rendering to uncompressed AVI these vertical bars does not appear. It does not matter what quality I render to.

Anyone experienced this effect?