how are you capturing that pal?
Hope this helps.
1. Firstly, you need a replay to export from, so go make one!
2. Once you have your replay, load it up.
3. Find the specific part of the replay that you would like to export.
4. Obtain the correct camera angle for what you are trying to export.
5. Select "Make Movie" (the icon with a film slide)
6. Select your resolution (720p or 360p (360p should be about a quarter the size of 720p) and your length of time (5 secs up to 30 secs, in increments of 5 seconds))
7. Render the Movie (this can take up to 10 minutes for a 720p 30 sec movie)
8. Once created, you need to save with a file name. (15 characters max)
9. Then it will give you the option to upload the movie to forzamotorsport.net Press A to accept. (If you already have a movie uploaded, it will ask you if you would like to overwrite it)
10. The upload takes a qhile (and you can't do anything else whilst it is uploading) so get a book, and read a few chapters.
11. Once uploaded, you need to download the movie from "My Forza" on forzamotorsport.net
12. Once that is downloaded (File could be up to 60 MB), as www.youtube.com is having difficulty in converting the WMVs to The FLV (Flash Video) format that it requires, I find it best to convert the Movie to an MP4, and I use OJOsoft Total Media Converter. The format I convert to is "Apple TV highest resolution at 24 fps - (H264, 1280*720, 3000kbps)"
13. Once converted, upload to the HD video host of your choice and share away.
If you host on youtube, feel free to add the video to our video archive, located here: http://forzamotorsport.co.uk/video.php (This is also available my clicking "Media" followed by "Videos" in the forum toolbar.
I didn't bother converting the file to MP4 though and uploading to youtube, I just upload to vimeo.