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Registered: March 13, 2007 | Reputation: | Posts: 3,197 |
| Posted: | | | | * Already mentioned several times but we need more flexibility with the number of audio channels (at least 1.0, 2.0, 5.1 and 7.1) for DTS HD HR/MA, Dolby Digital Plus and Dolby TrueHD. * Video codec (not necessary but interesting fact nevertheless) * 1080i or 1080p (maybe 720 too but I've never seen it) * Fields per second (24/25/30/50/60 as in 1080p/24 etc.) * Check box for PiP (Picture in Picture) features * Check box for Web enabled features
What have I missed? | | | First registered: February 15, 2002 |
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Registered: March 25, 2007 | Posts: 41 |
| Posted: | | | | if frames per second are to be added we will also need to differentiate between 24.000/1.001 fps (the most common rate) and 24.000 fps (just on very few discs). |
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Registered: March 13, 2007 | Reputation: | Posts: 2,217 |
| Posted: | | | | Quoting kschmit2: Quote: if frames per second are to be added we will also need to differentiate between 24.000/1.001 fps (the most common rate) and 24.000 fps (just on very few discs). Where does the 24/1.001 comes from? Movies are plain 24fps, so the Bluray should be 24fps also. cya, Mithi | | | Mithi's little XSLT tinkering - the power of XML --- DVD-Profiler Mini-Wiki |
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Registered: March 13, 2007 | Reputation: | Posts: 3,197 |
| Posted: | | | | They are not exactly 24fps since they are slowed down to 23.976. This makes conversion to 60Hz easier (which is in fact not 60 but 59.94Hz). And I think this is done because most sets still in use can not reproduce 24fps. | | | First registered: February 15, 2002 | | | Last edited: by Nexus the Sixth |
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Registered: March 13, 2007 | Reputation: | Posts: 2,217 |
| Posted: | | | | Quoting Patsa: Quote: They are not exactly 24fps since they are slowed down to 23.976. ehm, are still talking about HDTV? This whole odd-frequency thing was for the NTSC-colorencoding, I really don't see how this plays any role in HDTV. So even if your HDTV does't do real 24fps, a simple 3:2-pulldown brings it to 60fps and everything is peachy. cya, Mithi | | | Mithi's little XSLT tinkering - the power of XML --- DVD-Profiler Mini-Wiki | | | Last edited: by Mithi |
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Registered: March 13, 2007 | Reputation: | Posts: 3,197 |
| Posted: | | | | Yes, that is fine as long as your TV accepts 60.000Hz. Does everyone? I don't know the answer but it seems that most Blu-ray discs are indeed encoded at 23.976fps rather than 24fps. | | | First registered: February 15, 2002 |
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Registered: March 14, 2007 | Posts: 452 |
| Posted: | | | | Quoting Patsa: Quote: Yes, that is fine as long as your TV accepts 60.000Hz. Does everyone? I don't know the answer but it seems that most Blu-ray discs are indeed encoded at 23.976fps rather than 24fps. All Blu-ray/HD-DVDs are encoded 23,976fps. 24p is an abbrevation. Mithi is wrong. |
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Registered: March 13, 2007 | Reputation: | Posts: 3,197 |
| Posted: | | | | | | | First registered: February 15, 2002 | | | Last edited: by Nexus the Sixth |
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Registered: March 13, 2007 | Reputation: | Posts: 2,217 |
| Posted: | | | | Quoting Patsa: Quote: Yes, that is fine as long as your TV accepts 60.000Hz. Well, a lot of the old PAL-CRTs with 50Hz could stand 60Hz, they just couldn't show color if you fed in a NTSC-Signal. Quoting Peter von Frosta: Quote: All Blu-ray/HD-DVDs are encoded 23,976fps. 24p is an abbrevation. Mithi is wrong. There is still the question: why?Again, I know this frequency only from NTSC, NTSC is out of the picture. And surely HDTV with descalers, interlacers and a buttload of digital picture enhancers don't stumble over a one tenth of a percent speed difference. Just read the article Patsa linked ... WHAT THE FRAK? Sorry, I'm just about to give up the thought of buying BluRay/HDTV alltogether. I was annoyed as hell when 2 years ago there wasn't a HDTV that could show 24fps without 3:2 Pulldown to 60Hz, instead of showing each frame 4 time to go to 96Hz (e.g.). And now they even reintroduced 23,976fps? Has the world gone mad? Am I in some kind of Dilbert-Cartoon where the PHB wrote the technical specs for a new technology? cya, Mithi | | | Mithi's little XSLT tinkering - the power of XML --- DVD-Profiler Mini-Wiki |
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Registered: March 13, 2007 | Reputation: | Posts: 3,197 |
| Posted: | | | | This discussion is getting too technical and outside the scope of this thread, but suffice to say that various types of HDTV existed long before Blu-ray and HD DVD, particularly in the broadcast domain. These had to be NTSC compatible for legacy reasons and this carries on today. But I agree that all modern displays should be able to adapt to whatever input signals they receive without hiccups. But we are still in HD infancy, remember when progressive scan was introduced in DVD players? | | | First registered: February 15, 2002 | | | Last edited: by Nexus the Sixth |
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Registered: March 15, 2007 | Reputation: | Posts: 5,459 |
| Posted: | | | | Patsa's right - although I'm interested in this discussion (and now also very dubious about buying an HDTV in the near future), it really needs to be continued in the Home Theatre thread, and leave this one for the feature request, which is a good one, but seems to have got lost. My only current gripe with it is that it may be too technical - I can see the logic of recording 720 or 1080 (i & p) for example, but what difference does the codec make to the final product for example? | | | Last edited: by northbloke |
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Registered: March 13, 2007 | Reputation: | Posts: 3,197 |
| Posted: | | | | Well, we keep record of the audio codec (Dolby, DTS) so why not the video codec. Some people claim that the VC1 codec produces a "softer" image than the AVC codec, but I have no opinion. There are also some MPEG2 releases, mainly from Fox, which some people prefer to avoid. | | | First registered: February 15, 2002 | | | Last edited: by Nexus the Sixth |
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Registered: March 15, 2007 | Reputation: | Posts: 5,459 |
| Posted: | | | | I always thought we recorded DTS etc because whether these discs worked or not was dependant on your hardware, so was quite important for purchase decisions. However, if you think that sort of info is just as important I have no objection to it being there - as long as it's easy enough to find! |
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Registered: March 13, 2007 | Reputation: | Posts: 3,197 |
| Posted: | | | | I think any hardware that doesn't do DTS is obsolete. But I never said it was important, just interesting. Sometimes when choosing between different editions of the same film, the sound options can be a deciding factor, which I'm sure is true for video as well. | | | First registered: February 15, 2002 | | | Last edited: by Nexus the Sixth |
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