Strange horizontal "Stripes" on Movie's

Hi Guy’s
It’s my first time here in the Forum ,so i hope it’s the right section for my topic.

When i render some video i’got strange stripe’s on the “moving” things
like in this example on the outside of the “burning sphere”

http://5474n.endofinternet.org/down/blender/sphere.avi

Is there any possebility to work around ?

it’s only on some movies.

Sry its my first time with blender.

now i’m rendering stuff with clouds and a ocean
http://5474n.endofinternet.org/down/blender/clouds.jpg

and the first preview with a moving camera also has the horizontal stripes on :frowning:

what can i do ?

i don’t want to start a final render and wait 18h to have a movie with stripes.

Regards
~Kabelmaulwurf

Hello,
I’m having the same problem!
Did you ever get an answer to this problem?

Do you have fields enabled in the Render Panel? Just a guess from a noob.