Thomas:
h264 is actually MPEG4 compression, so it’s likely you can use it. Don’t know what wrapper you need to use – if you’ve tried and it hasn’t worked, that might be your issue.
You can change the bitrate and wrapper/extension in the inspector window of Compressor.
>Highlight the compression setting that you placed on the asset
>now, in the inspector window, right under the “description” field, there are 6 buttons. Second from the left is the “encoder” button. Click that.
>Change the extension if you want
>Set your bitrate by clicking video: SETTINGS. A window will pop up to allow you to do this.
>You can also change your frame size using the geometry button – a smaller frame size at the same bitrate will yield better quality at that size (though there are diminishing returns as the video gets smaller).
>Also, multi-pass process will always yield better results.
Hope this helps. In the future, there are plenty of video and text-based tutorials for the button pushing needed to accomplish these type of tasks – just plug your question into google and you’re bound to get many good results.
Best,
Marc