I've tried ripping a DVD using the Apple TV preset in the new 64-Bit version of Handbrake - no other changes - and the resultant file won't play on the ATV or in iTunes. I've also ripped the same DVD using the iPhone preset, and that works fine. I thought at first it was a tagging issue, but the untagged file is the same. It "plays", but with a black screen and no sound. Anyone else having this problem?