Remote libraries
You can choose one remote iTunes library as a source. Items in this remote library are combined with items stored on the AppleTV, and appear under Movies / My Movies. This library must be configured for syncing, and will begin syncing immediately after pairing. You cannot select a default remote library that merely streams, but you can (laboriously) disable each of the sync categories.
The minimum UI path to view your own movies is now Click-Down-Click (click Movies, Down to My Movies, click to select). If you have your region set to somewhere with movie rentals, the minimum UI path is Click-Down-Down-Down-Down-Down-Click. This is crappy usability vs. the 1.x firmware, which achieved the same thing with a single click. The UI remembers previous selection positions, however.
You can also browse remote libraries without selecting them as a source, by doing the passcode pairing and then selecting Movies / Shared Movies. As suggested by Apple people who post here, this seems to only transfer metadata for the relevant section of the remote library, and so is quite a lot quicker.
Local or remote libraries of your own movies use the 1.x selection UI (tall vertical list), and not the newer poster grid interface.
Parental controls
Parental controls on your own movies works, provided you have tagged them appropriately. Content restricted by the parental controls still appears in the list, it simply prompts for the PIN if you attempt to play them.
Rental selections and locations
The ability to browse the rental selection is dependent on a region setting you can choose. The ability to buy or rent is determined by your Apple ID, which you enter separately. If the region is set to a country that does not have rentals available, these options are removed from the menus. It doesn't matter where you bought your AppleTV or which country you are using it in. If you can somehow arrange a US-located Apple ID that can buy content from the US iTunes store, you can rent movies. The mail fraud required to achieve this is left as an exercise for the reader.
Audio output
Turning on the Dolby Digital output does not enable the transcoding of 6ch AAC into AC3 at the output. The output remains Dolby ProLogic II. Examination of the new bootup movie suggests that Apple snatched defeat from the jaws of victory by bundling a stereo audio stream and an AC3 private stream in an MPEG-4 container to provide AC3. Presumably this is the approach they will take for rentals as well.
It does mean, however, that transcoding audio from AC3 sources is now a possibility when ripping movies (at the cost of good MPEG-4 compliance), but I have not tested that yet.
Other stuff
Feel free to add your own factoids. ;-)
You can choose one remote iTunes library as a source. Items in this remote library are combined with items stored on the AppleTV, and appear under Movies / My Movies. This library must be configured for syncing, and will begin syncing immediately after pairing. You cannot select a default remote library that merely streams, but you can (laboriously) disable each of the sync categories.
The minimum UI path to view your own movies is now Click-Down-Click (click Movies, Down to My Movies, click to select). If you have your region set to somewhere with movie rentals, the minimum UI path is Click-Down-Down-Down-Down-Down-Click. This is crappy usability vs. the 1.x firmware, which achieved the same thing with a single click. The UI remembers previous selection positions, however.
You can also browse remote libraries without selecting them as a source, by doing the passcode pairing and then selecting Movies / Shared Movies. As suggested by Apple people who post here, this seems to only transfer metadata for the relevant section of the remote library, and so is quite a lot quicker.
Local or remote libraries of your own movies use the 1.x selection UI (tall vertical list), and not the newer poster grid interface.
Parental controls
Parental controls on your own movies works, provided you have tagged them appropriately. Content restricted by the parental controls still appears in the list, it simply prompts for the PIN if you attempt to play them.
Rental selections and locations
The ability to browse the rental selection is dependent on a region setting you can choose. The ability to buy or rent is determined by your Apple ID, which you enter separately. If the region is set to a country that does not have rentals available, these options are removed from the menus. It doesn't matter where you bought your AppleTV or which country you are using it in. If you can somehow arrange a US-located Apple ID that can buy content from the US iTunes store, you can rent movies. The mail fraud required to achieve this is left as an exercise for the reader.
Audio output
Turning on the Dolby Digital output does not enable the transcoding of 6ch AAC into AC3 at the output. The output remains Dolby ProLogic II. Examination of the new bootup movie suggests that Apple snatched defeat from the jaws of victory by bundling a stereo audio stream and an AC3 private stream in an MPEG-4 container to provide AC3. Presumably this is the approach they will take for rentals as well.
It does mean, however, that transcoding audio from AC3 sources is now a possibility when ripping movies (at the cost of good MPEG-4 compliance), but I have not tested that yet.
Other stuff
Feel free to add your own factoids. ;-)