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Is it worthwhile to have a DVD player (like the VINC Bravo) with DVI output (considering DVDs are less than high def). I'm using a $89 Sony CD/Dvd player into a LCD rear projection sony and have great results...could it be better with a DVI interface?Thanks!
Peter
Follow Ups:
It really depends upon the interaction of the player with your tv/projector. In my case, the Bravo has a very poor interaction with my projector (Sharp 10000 series DLP). A recent SGHT article on the Bravo highlights this problem. It is one of inadequate standardization at this point. As the SGHT article suggests, don't commit to the purchase until you try it out with your SPECIFIC system. As others have said, in principle it will be highly advantageous to run with DVI because you avoid several conversions. In practice, it may be a very different outcome.
I think the Sharp expects PC levels (0 - 255 vs 16 - 235), right? That's probably what's happening with your projector.Many of the older and/or less forward thinking projector systems use the digital PC standard, rather than the digital video standard (CCIR601/ITU601). Fortunately, many of the newer projectors come with a PC/video switch to allow for the fact that the DVD format is based on the digital video standard. The HDTV format is also based on the video standard, but has a different ITU number.
If you have one of Sony's recently released RPTV LCD models, the answer is yes . If you have last year's model or the one before it, then no .The latter two Sony models actually used analog circuits for the video processing. Sony's said that they offered DVI inputs to allow consumers with DVI capable sources to use them with Sony's RPTV LCDs. Actually, that was just marketing speak for " our WEGA engine is analog, therefore your digital input is converted to analog negating any potential inprovement gained by an all digital path. ". Facts is facts, as they say.
This year, the WEGA engine is (finally) all digital and there are no analog steps in the path -- except at the phosphors, of course.
DVI, even for just DVDs, will allow for an increase in picture sharpness, less video noise, less degradation of the signal due to analog conversions and their required connectors/cables in the video path. The upscaling DVI DVD players usually offer an upscaling fuction that (may) present a better signal for your display to... well, display.
DVD player and display with proper DVI implementation:
(MPEG2) digital YCbCr --> digital RGB --> D/A (LCD phosphors)As you can see, using this route there's only one analog conversion, as opposed to multiple D/A and A/D conversions.
The Denon DVD-5900 ($2000 MSRP) has DVI out. It will also scale 480p (standard DVD resolution) up to 720p or 1080i via the DVI interface.My Samsung SIR T351 OTA HDTV tuner has DVI out as well as regular component video out. It does look a little sharper via DVI vs the analog component video cable - and this is into my 'analog' CRT 16:9 TV/Monitor. DVI picture quality into a digital display like LCD or Plasma (where you're driving the pixels directly) may be even more noticable.
The component in our Stealth version of the Bravo D1 does the same thing. It will scale 480p, 720p, and 1080i.Alan
I don't know how it will work with the projector you have, but usually it is quite a bit better.
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