Why is it that if I buy a movie or TV show, widescreen or regular 4:3, from the iTunes Store, I can use it on both my video iPod and my Apple TV, same file. But if I use the current version of Handbrake to convert one of my DVDs, if I use the Apple TV preset, the MP4 movie won't even copy to my iPod because it won't play on it; and if I use the iPod preset, it will sync with the Apple TV but it won't play -- I get a "no data found" message when I go to play the file on the Apple TV? Meaning I have to keep an iPod version and an Apple TV version of the file.
Really this is more of a curiosity than anything. If I buy from the iTunes Store I only need the one file for both the Apple TV and the video iPod. And if I convert from DVD with Handbrake I really only need create an iPod version for portability, because I can always just play the physical DVD on one of two devices on my main A/V system that play DVDs.
I'd like to know if it's possible to with Handbrake make an Apple TV version at Apple TV resolution that also plays on an iPod. Only reason being that I also have a PSP and software that converts MP4s to carry round on the PSP, and if I convert for the PSP an iPod version of a Handbraked DVD, I'm converting from a 640x480 max resolution MP4, while the PSP can do a true widescreen resolution, which I lose if I create an iPod-only DVD conversion with Handbrake. Converting an Apple TV version to PSP, I get the best possible PSP screen resolution conversion.
Again, I'm just wondering if it can be done; it's not such a deal, considering I can just zoom on the PSP screen the iPod->PSP conversion with surprisingly little loss of image clarity, and really only require the iPod version if I want to go portable, since it's just as easy to play the DVD itself as it is to play a conversion off the Apple TV.