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  1. Don Munsil

    Is DVI really much better than component?

    DVI actually has to be post-deinterlacing, because DVI is progressive-only. HDMI adds a 480i mode, but it's not widely used yet. Don
  2. Don Munsil

    Competing HD formats

    Mike, I'm not really sure that argument would have much effect on the studios. There aren't that many people with $3000 speaker systems. I agree that there is an audible difference between DD at current bitrates and the master recording (which MLP is just a lossless compressed version of)...
  3. Don Munsil

    Competing HD formats

    Audio, bah. :) Without the audio, video is still good. I can make up my own dialog, hum a tune, make sound effects with household objects. But if you leave the audio on and cut off the picture, I'm blind! Aaaaaa! What's that noise? Is that crunching leaves or someone's head being crushed by a...
  4. Don Munsil

    Competing HD formats

    Well, I took a quick poll of those who know more than I, and I take it all back. There is a reasonable chance that MLP will become a standard format on HD-DVD. Dolby Digital will almost certainly be one as well, as will DTS and straight PCM. All the standard formats will be supported by every...
  5. Don Munsil

    Competing HD formats

    John, Respectfully, I think you are foolish. :wink: But seriously, you're of course correct that it would fit, but I just can't see the studios devoting that much bandwidth to uncompressed audio. Heck, I very much doubt anyone could tell the difference between MLP and, say, 1 Mbps Dolby...
  6. Don Munsil

    Competing HD formats

    Well, I personally have no problem with Dolby Digital. It's well regarded in the industry, and it's the most commonly used digital format in movie theaters. I certainly don't think MLP is a good choice for a general HD format at this stage. Lossless audio compression is, IMO, complete overkill...
  7. Don Munsil

    Competing HD formats

    Actually, lower density with a newer codec can look better than MPEG-2 at a higher density. I've seen the proof - the same content compressed with MPEG-2 professionally with high-end encoders at 28 Mbps compared with WM9 compressed with a desktop PC at 9 Mbps, and the WM9 looked significantly...
  8. Don Munsil

    Competing HD formats

    MPEG-2 is an inferior codec to WM9 or H.264 or most of the other next-gen video codecs in every possible way. At the same bitrate, any of the newer codecs look much closer to the original source than MPEG-2. Heck, they look closer to the original source at half the bitrate. The only reason to...
  9. Don Munsil

    HDTV Aspect Ratio

    Also, as Matt mentions, the Sony WSS solution only works in 480i. They didn't implement it for 480p, even though it would have been relatively trivial - it's one line 21 of the vertical blanking area, and line 21 exists in progressive as well as interlaced. Of course, I'm not actually sure...
  10. Don Munsil

    HDTV Aspect Ratio

    Sony implemented WSS (Wide Screen Signalling) on some of their 4x3 NTSC TVs and some of their DVD players. Kudos to Sony for taking a stab at this problem, but I believe it's only a PAL standard, and Sony just appropriated it for their NTSC sets. It's possible that it's a legal (but obscure)...
  11. Don Munsil

    HDTV Aspect Ratio

    I'll leave aside Phil's comment about "natural wide" as he knows my feelings about that. :) Folks, this is very simple. In NTSC and PAL, you can have 4x3 video or 16x9 video. Those are (so far) the only two aspect ratios available. Sadly, there is no way to distinguish the two electronically...
  12. Don Munsil

    HDTV Aspect Ratio

    George, believe me, I know much more about this than thedigitalbits.com (not that I have anything against The Digital Bits; they do a great job). I'm a developer at Microsoft on the digital video team. I know the DVD spec inside and out - I have a copy on my desk. I am not guessing when I say...
  13. Don Munsil

    HDTV Aspect Ratio

    "Full" is not a stretch mode. "Full" is a normal 16x9 mode. HDTV is 16x9, as is so-called "anamorphic" DVD. They're both 16x9, so the TV needs to be in 16x9 mode. Q.E.D. The other modes, like "natural wide" (which gets my vote for 'least accurate description') are different ways of converting...
  14. Don Munsil

    Which of the following plagued with "Chroma Bug"?

    All the current models of Panasonic DVD recorder use the new MPEG decoder that has the bug, to the best of my knowledge. I've only personally seen two of the recent models, but it would be very strange for them all not to share a common design. Their first model or two from the previous model...
  15. Don Munsil

    Which of the following plagued with "Chroma Bug"?

    Stephen, I don't know of any Panasonic RP32. RP was their prefix for progressive models, and the 32 wasn't progressive. The RV32 has no chroma bug. No Panasonic models have had chroma bug up until this year's models, which changed to a new line of MPEG decoders that have chroma bug. There...
  16. Don Munsil

    Any benefit in using Component over S-Video from DVD to Non-HD TV?

    I'm going to mildly disgree with some here and say that the difference is likely to be quite subtle. Greg T. is correct about the chroma channel being multiplexed, and this does limit bandwidth, but only in chroma. The luma channel should be exactly the same, barring something wrong in your DVD...
  17. Don Munsil

    Is there a non progressive DVD player with automatic aspect ratio?

    The JVC has an annoying issue that it derives the interlaced image from the progressive image, so even if you use it in interlaced mode you still will get deinterlacing issues because the image will be deinterlaced and then re-interlaced before being sent out the back. As far as I know, there...
  18. Don Munsil

    My disapointment w\ Denon DVD-2900

    Denon's engineering on the 2900 was excellent. The company that really screwed up was Mitsubishi (the maker of the MPEG decoder). You could argue, I suppose, that Denon should have caught the error and made Mitsubishi fix it, but from what I have heard through the grapevine it took quite a bit...
  19. Don Munsil

    My disapointment w\ Denon DVD-2900

    Rodon, You didn't see the problem in play mode because your player doesn't have it. Stepping through the film frame by frame is a quick way to tell if the DVD has the alternating progressive flag encoding, but that's not the problem. The problem is when a player reacts to this common...
  20. Don Munsil

    My disapointment w\ Denon DVD-2900

    Rodon, You really don't have to zoom in or do any of the above, though following James's suggestions will help you see the issue more clearly. I can see the flaw easily during normal playback from 12 feet away from an 80 inch screen, which is a normal viewing distance for front projection. If...
  21. Don Munsil

    My disapointment w\ Denon DVD-2900

    David, I don't know if Alien has the alternating progressive flag issue, but I'll try to check it tonight if I can. My guess though is that it's just a combination of high-frequency patterns and edge enhancement. In other words, it's probably in the source. Don
  22. Don Munsil

    My disapointment w\ Denon DVD-2900

    Peter & Jeremy, You do realize that it's a lot more titles than just Monsters Inc.? Don't get me wrong, I'm not at all saying the player isn't any good, but you should at least be aware that it's hundreds and hundreds of top titles that have this issue. It's not just animated titles, it's...
  23. Don Munsil

    Interesting chat with Panasonic-re rp82

    DCDi is actually just one part of what makes the Faroudja-designed deinterlacing chipsets great. It happens to be the thing that Faroudja emphasizes in their marketing because it's exclusive to them and no one else has anything quite like it. However, the Faroudja-designed chips also have...
  24. Don Munsil

    Interesting chat with Panasonic-re rp82

    It's nice to know that Panasonic keeps their techs so well informed. :rolleyes It's in there, believe me. You don't even have to pop the hood to check. Two seconds of looking at the waving flag in Video Essentials will tell you, because no one else has anything like DCDi. Don
  25. Don Munsil

    DVD Shootout Questions

    We get samples three ways: - Borrowing them from friendly owners or local stores - Lent by the manufacturer - Buying them In most cases, we use a single sample, but we have never seen any signficant variability from sample to sample in the cases where we've measured multiple units. For...
  26. Don Munsil

    Do high end DVD players improve movie sounds?

    For what it's worth, I'll take the position that for Dolby Digital and DTS, there is nothing that the transport or cable could do to affect the sound. Bit errors are highly unlikely because the SPDIF connection is more than adequate for the job, and when they occur they're really noticeable...
  27. Don Munsil

    Denon DVD-2900 may have chroma bug

    That's very kind. Thanks. I just posted a pretty complete rundown on what's going on with the 2900 on AVS Forum, in the thread referenced above. The short version is that it has a chroma-bug-like issue with alternating progressive flag material. Unfortunately, this material is pretty common. You...
  28. Don Munsil

    Is the chroma bug real?

    I'm pretty sure Shane is running his 9000ES interlaced through a Faroudja processor, which hides the chroma bug. Don
  29. Don Munsil

    Which new players offer scaling

    Man, None of the Pioneer models has scaling, to the best of my knowledge. Don
  30. Don Munsil

    Improperly flagged non 16x9 DVD's

    Neil, you should set up your JVC for 16x9 Auto and not 16x9 Normal. This will tell the player not to windowbox 4:3 DVDs and zoom non-anamorphic letterboxed DVDs. You'll then need to use the aspect controls on the 11HT to change aspect ratios. There are two reasons for this: - The one...
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