To: BillyG who wrote (26026 ) 12/3/1997 9:34:00 AM From: J Fieb Respond to of 50808
A recent Usenet posting where the critical issues of image quality are discussed for PC-DVD....Why you should just hook it up to your TV. Maybe this is why encore only got 3 stars. CUBE can't you fix this VGA disply problem(make a ZiVA for VGA) or do the delacing for them?. People won't know its not the fault of the decoder. Chromac, are these problems surmountable?ww2.altavista.digital.com @49904@alt%2evideo%2edvd%26cinemaster > >> Your not out of luck. ALL the DVD-ROM players perform Line-doubling, > >> whether or not they explicitly advertise it as a 'buzz-word' like > >> CL does. > > > >This isn't exactly true. The cinemaster card doesn't do line doubling. > >It attempts to do de-interlacing by discarcding half the frames, which > >looks like crap compared to real line doubled output. > > > > But each frame (field strictly speaking is what you mean, right?) is > only half the lines of the total picture. does it then just display > each line twice? That seems awfully cheap, but then again... :-) That's what it should do, but do to poorly written and tested software the reality is worse than that. It discards the lines from half of the fields and doesn't make the lines double thickness, so the picture is squashed to half of its height. Worse, when you try to play the blasted thing back at a higher res mode it still uses the same number of scan lines that it does in 640x480 and just stretches the picture even more horizontally. In other words, the software for this card is complete crap. > >> From what I've been able to gather, the Sigma Designs RealMagic Hollywood > >> decoder (available by itself or in a bundle from Sony or Philips) if by > >> far the best best for line-doubled video out to a Data Projector. It > >> is univerally accepted as the best VGA display (the Hi-Val kit apparently > >> has some glaring problems on the VGA display, as do the CL board, although > >> both of them seem to do well out the s-video port). the Hollywood board > >> can thoeretically X-Y interpolate up to 1280x1024, whic is almost line > >> quadrupling! > >> > >> Give it a try, I think you'll be pleased. > > > >I've looked at this card once. My understanding is that it doesn't do > >AC3 output, which is something I need for my planned application. Do you > >know if they are going to address this shortcomming? > > > > See my other post. Basically, there is an internal plug on the card that > has SP/DIF out on it. but they didnt (for whatever reason) include an > extra plug ont he card, so you'll need to buy a backplane metal piece > with a wire to connect to the card. Cheap if you can find one. Thanks for the info. This won't be problem for me. > >Also have you actually seen the picture from the hollywood card? I'm > >curious how well it handles the issue of scalling artifacts. The Dxr2 > >card only provides decent looking line doubling at 640x480. At other > >resolutions you can see scaling artifacts similar to the scaling > >artifacts that I encounter in the more mediocre designed video processors > >in LCD data grade projectors. > > > > When I was at comdex this year I saw the CL Encore, the Hollywood, and > the Hi-Val, and I think one other, and the Hollywood was far and away > the best. all the others looked washed out, the CL Encore just plain looked > bad, and the Hollywood had an abundance of controls to adjust the picture > quality (things like gamma control and color temp, etc). > > Also, all reviews of the Hollywood (or the current bunch of DVD-ROM's) > have all said the VGA performance of the Hollywood card (as opposed to > s-vide or comp, which doesnt interest me) is superior to all other cards > out right now. Most reviews have also pointed to the poor chroma-keying > as being the main reason most other packages are poor (much like you
> have surmised). I owned the Creative Dxr2 for a month and I've been playing with this Cinemaster card. I'm basically going to keep going through these cards until I find one that meets my needs. I plan to use this with the graphics grade CRT projector that I'll be buying for Christmas. > The Hollywood has a built-in scaler from 16x16 to 1280x1024. I'm not sure > if this necessarily implies it is superior, but I would say it does. > also Sigma Designs has been doing MPEG boards for a long time, much longer > than the other companies with DVD-ROM offerings............. CUBE say it isn't true. Is the above true, the Sigma Designs board is the best PC-DVD sol.? How come you are doing as well as you are on PC-DVD? Any comments out there? Maybe my first player will be a CE model. Anyone have a good link for learning the differences between TV and PC screens? If ZiVA is specialized for CE and TV graphics where design wins have been slow to materialize. Is there any chance that ZiVA2 could split into 2 types, one for TVs and one for PCs. Just worried that maybe the video quality isn't good with PC-DVD and ZiVA. ha