JJFlash64 wrote:
Can you describe step by step how did you do it? I would appreciate it.
As AC says, don't use the 'movie to tv' setting, use 'movie to mpeg4', if you have any problems with the settings just ask, but they are reasonably straight forward.
I can see a big difference in quality between original avchd file in 1080i from camera and exported to AppleTV 960x540 format.
That may well be the case depending on how you are comparing the two, you can't however play 1080i through the tv so really your comparison should be 720p vs 540p, in which case I doubt you will see much difference.
I found this procedure:
http://docs.info.apple.com/article.html?artnum=305173 which says that it is possible to export from iMovie to Apple TV in 1280x720, 24 fps Progressive, but that simply does not work. I can't find an option to choose such a 720 resolution neither in iMovie nor Quick Time. Always when I choose as an export: Move to Apple TV then there is no option to choose. Everything goes automatically and result always is 540.
If the 'movie to tv preset' results in a file at 540p then you are not starting with 24 fps video. Why do you want to change the framerate of your video, this will result in jerkiness in your movie. Unless you have a really compelling reason to change the framerate of any movie don't.
You don't say whether you are using NTSC or PAL, whichever you are using you should resist changing the framerate. If you are using NTSC then you are stuck with 540p, the tv simply won't play 30 fps any higher than 540p. If your using PAL then you can use the 'movie to mpeg4' as described hereinbefore to export a movie at 720p and 25 fps, however in my opinion there is little or no difference between these exports and simply exporting to a large movie format.
I think there may well be a benefit to using 540p over 720p in some ways since 1080 is a multiple of 540 but not 720. You can see a comparison of 540 vs 720 here:
http://web.mac.com/gartside1104/z002
(uploading now - you may have to wait a little if you're trying to view shortly after I made this post)