In after effects CS4 , the video keeps being like in the image I attached (With a black part at the top) althou it isn`t captured like that ... I tried to change the format but nothing happened.So What is this ? And how can I remove it ? Also I would like to know the supported formats by After Effects CS4.Thank you.
This may be related to a recent Windows update that fouled up WMV files, but since we can't see your image and we don't have any idea about the kind of system you are using this is only a guess.