user5058: I have a video in the format of 1600 * 1200.
I want to convert this video into 1200 * 900.
I have done this with handbrake, but the first 10 seconds of the video is black and scrambled.
Is there a way to convert the video correctly with handbrake or can I do this differently ?
UPDATE
When I play the converted video the first time with "Windows Media Player" the first 10 seconds are not visible correct. If I replay the same video in the same "Windows Media Player" session it shows up correctly also the first 10 seconds.

user23212: Use ffmpeg with -vf scale=1200:900 option. For example
ffmpeg -i input.mp4 -vf scale=1200:900 -c:a copy output.mp4

5058: <p>I have a video in the format of 1600 * 1200.
I want to convert this video into 1200 * 900.</p>

<p>I have done this with handbrake, but the first 10 seconds of the video is black and scrambled.
Is there a way to convert the video correctly with handbrake or can I do this differently ?</p>

<p><strong>UPDATE</strong>
When I play the converted video the first time with "Windows Media Player" the first 10 seconds are not visible correct. If I replay the same video in the same "Windows Media Player" session it shows up correctly also the first 10 seconds.</p>
 23212: <p>Use ffmpeg with <code>-vf scale=1200:900</code> option. For example</p>

<p><code>ffmpeg -i input.mp4 -vf scale=1200:900 -c:a copy output.mp4</code></p>
