Hi, i download video from youtube using any video converter or realplayer and both i have a problem, sometimes i see in the bottom of the screen some white lines that i can view a lot because the background is black. I dont have what happen, in youtube you can view perfect but after i download the video i can see this white llineas.
An example
Youtube video: David Bisbal - Dígale - YouTube NO WHITE LINES
after download:
http://img259.imageshack.us/img259/1332/screenshoto.png
I see its a little but every 5 secons or more appears and it goes fast only appers on 1 frame and you see a white line that contrast.