Originally Posted by kutlow
I have the Oppo 93. It is said that it will perform vertical stretch on 2D BluRay Discs and on some 3D BluRay discs. I need this function since I use a Panamorph UH480 Anamorphic Lens. The Lens does the horizontal stretch.
I only watch the newer 3D BluRay movies. How do I know which ones will work and which ones wont? I heard its called some type of files but not sure. If you know what it is what percentage of new 3D BluRays would I be able to stretch?
The Oppo 93 supports Zoom modes (including vertical stretch) on Blu-ray 3D discs which are *NOT* authored to use a BD-Java program loaded off the disc (and perhaps updated over the network) to control their disc playback.
Disc packaging does not indicate whether discs do or do not use BD-Java. So you just have to try it, or rely on reviews from others. Here's a bit of an outdated list from the Oppo 93 Wiki (links to the Wiki and FAQ are, as always, found at the top of the first post of this thread):http://wiki.oppodigital.com/index.ph..._stretch_3D.3F
The easiest way to discover if any given Blu-ray disc you happen to have (2D or 3D) is authored using BD-Java is:
1) In Setup > Playback Setup, confirm that Auto Resume is ON
2) Start the feature playing on the disc (not just the preview trailers or disc menus)
3) Hit Stop ONCE
You will be returned to the Oppo splash screen. If a message is displayed reading "Press PLAY to continue", then that disc is *NOT* authored using BD-Java. (This works because BD-Java programs also seize control of how Resume Play works.)
NOTE 1: Be warned that discs are frequently issued in multiple versions. For example, sometimes the retail version of a disc DOES use BD-Java, but the "rental special" version of that same disc -- authored without any "extras" content -- does NOT use BD-Java.
NOTE 2: The "BD-Live" Blu-ray feature -- which allows you to go out on the network, to view additional content from the studio's server -- uses BD-Java. So if the disc packaging says the disc includes BD-Live, then you know that disc is authored with BD-Java. (Turning BD-Live OFF in the Oppo has no affect on the BD-Java-ness of the disc itself.)
NOTE 3: Be sure you are using HDMI 1 output cabling for video, have Setup > Video Setup > Primary Output set to HDMI 1, and do NOT select Source Direct if you want to use Zoom with 3D titles.
Many of the early handful of 3D discs were authored with BD-Java. Then it was revealed that the PS3 was not able to handle both 3D and BD-Java at the same time, so studios stopped using BD-Java in newer 3D titles, for quite a while. Then Sony finally updated the PS3 to allow 3D BD-Java support, so I imagine studios are reverting to their old, bad habits and using BD-Java again.
BD-Java allows fancier disc user interfaces, certain oddball disc features, and (ahem) more onerous "copy protection". BD-Java is a computer programming language, and studios to date have proven particularly inept at coding these programs for their discs, but gosh, they keep on trying! Such pluck!
The problem with BD-Java in this case is that BD-Java disc control programs are allowed, by the rules of Blu-ray, to trigger "zoom" stuff in the decoder THEMSELVES, without warning and without the ability of the user to change that. This means that for a BD-Java disc, user controlled Zoom can't be implemented in the decoder. And even though no studios DO THAT (yet) in their BD-Java stuff, the Blu-ray certification tests test for that ANYWAY, so OPPO has to live with it.
However on HDMI 1 the OPPO has a 2nd chance to do Zoom -- in the video processor AFTER BD-Java does it's thing and gets the heck out of the way. This turns out to be tricky to do in a way that doesn't, itself, run afoul of the Blu-ray certification tests.
Oppo has figured out how to do that for 2D BD-Java discs, but not for 3D BD-Java discs. It's not clear it CAN be done for 3D given the added complexities and funky design of that format. Complaints to Blu-ray Disc Association, please.