Talk:DVD-Video - Knowledge

1906:." And: "A DVD player uses flags to convert progressive content into interlaced video suitable for interlaced TV sets. These flags also help reproducing progressive content on progressive-scan television sets." It also has a reference. DVD-Video spec is not very obvious to understand. Video can be encoded either as frames or fields, but it is still field-based. Only the compression can be frame-based for efficiency, logically video still consists of fields and is supposed to be output by DVD player in interlaced form. Hence, 24p video can be encoded as 24fps frames, but pulldown flags are set to "hint" the decoder how to convert it into 60i (or 30i in frame-based notation). The DVD-Video spec appeared when people were still using interlaced CRT-based TVs. For current generation of progressive-scan TVs there is no need to output interlaced video. Thus, DVD players are using these flags to figure out if the content is progressive, and if yes, they output it as progressive. This is sort of against the original DVD-Video spec, but it works better for modern TVs. Read this too: 682:" This amazingly broad statement is not only wrong, but it also represents something of a value judgment on your part: "Some cheap encoders don't require people to understand 3:2 pulldown, so therefore I refuse to include a sentence about that in the article." In fact, some low-end "consumer DVD-oriented" software products don't even require you to specify a bitrate. You simply select low, medium, or high quality, and they spit out a finished dvd image. Using your flawed logic, I could argue that the talk of bitrates is overly technical and should be removed from the article. The purpose of Knowledge is to expand practical knowledge, not limit it. Your attitude of "I'll decide what the reader wants to see and doesn't want to see" is inimical to Knowledge's goals. 1498:

target resolution and the native PNG image has to be scaled to the target resolution. Each resulting PNG image is placed in an image cache until dumped from the cache. We do not know the relative amount of resources which each operation (rasterizing, scaling) takes, nor do we know how often each must occur. To know how often we would need to know how often each page is served and the persistence time of an image in the image cache. We could experiment to determine this information, but it is probably not worth it. Thus, it is unlikely that we will choose to find out enough information to consider this portion of the resources consumed.

1411:: I generally agree that the use of an SVG file is preferable over a raster format. However, a major reason for the preference is that vector graphics commonly are much smaller than raster formats. However, that is not always the case. In this instance the SVG file is 1.68MB whereas the PNG file is a mere 16KB (about 1%). At some threshold the other factors which make vector graphics preferable to a raster format would make it reasonable to recommend using a larger SVG file. But this is certainly not an instance where that is the case. In other words: keep the use of the PNG file. 554:

encoded at 23.976fps into 480i60, but the MPEG2 sequence layer must ALWAYS specify a 29.97fps framerate. The distinction between progressive and interlaced video formats and the significance of the MPEG-2 field flags is vital for anyone who is remotely interested in understanding how video assets are prepared and authored for DVD. My additions to the article were relevant, accurate, and necessary for clarity. They were neither "overcomplicated" nor "misleading" (how???) as you claim, and the fact that you perceive them as such strongly suggests that you,

448:"Professional" here is used in the context of commercial releases, etc. Hollywood studios, the adult film industry, and other such major video production sources use DVD-Video to release their productions, hence the word "professional". By the same token, "consumer" is used because numerous pieces of easy-to-use software exist specifically for the purposes of allowing the home user to create DVD-Video content, as well as set-top DVD recorders and some digital camcorders. Both of these are generally accepted definitions or uses. -- 1470:

cycles, etc.) for its use over a different, or no, image. Thus, I agree that file size is not the primary consideration. Quite frankly, I should not have focused on it in my comment, particularly given that a rasterized PNG is served for the SVG file. File size is just an indicator that a more detailed look should be taken at the issue of which picture should be used and a discussion held as to which is preferable. The huge disparity in file sizes for images that have similar native resolutions

257: 1576: 187: 74: 53: 1566: 558:, may be be somewhat in over your head here. You speak authoritatively about the MPEG-2 and DVD specs, but you apparently don't even understand the "complex mathematical reason" for settling on the 720x480 resolution. Hence, I don't think you are in a position to arbitrate what is "overcomplicated". I have no problem with someone editing my contributions, but blanket reverts are both rude and arrogant. 177: 150: 22: 1494:

is particularly true when a raster graphic is (up)scaled using faster, less visually visually pleasing, algorithms. When scaling down, a SVG image will often look better than a resized raster based image, but not all the time. This is somewhat countered by the fact that the RSVG engine that Knowledge uses to rasterize SVG images often introduces errors.

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used to be one sample from a DVD in the FFmpeg samples collection, there are others now, but they come from surveillance HW or similar) that NVidia's original VDPAU drivers did not support it, so the article should not claim that this is the normal use case, it should explain that DVD's are usually progressive, but may also be encoded interlaced.--

680:"Understanding the method behind 3:2 pulldown is completely unecessary to "understanding how video assets are prepared and authored for DVD" for anybody but professionals. Exactly 0% of consumer DVD-oriented MPEG-2 encoders or DVD-Video authoring programs require an understanding of 3:2 pulldown in order to properly encode 23.976 fps video. 364:

approximate 893x480 (16:9) on playback. The rest of the resolutions are all squashed or stretched to the nearest 4:3 resolution. As for why, there's a complex mathematical reason revolving around how the numbers can be factored. Nobody's ever explained it to me in a manner that makes sense but they all assure me that its there. :P --

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The first sentence says 'DVD-Video is a consumer video format used to store digital video on DVD discs, and as of 2003 is the dominant consumer video format in Asia, North America, Europe, and Australia.' My question is, is the fact that it was the most dominant format in 2003 relevant today? I guess

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Makyen, I certainly do not agree that size of a file is the main reason for using SVG; especially nowadays when storage of such capacity is not a problem. If you think that the problem is a transfer bandwidth for web browsing of Knowledge you probably missed that Knowledge converts SVG images to PNGs

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article, but it should be at least summarized here. In addition, info should be available about the manufacturers (who was first to market with a DVD player), titles (what was/were the first DVD title(s)?), etc. There should also be some discussion of the development of successful categories of DVD

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article describing the Book B spec, including citing bitrate and framerate requirements. One could very easily argue that this whole article is 'specialist information'. Refusing to include two additional sentences that correct a mild innaccuracy and elucidate how non-NTSC material is encoded on an

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The primary argument for using a SVG image is that vector graphics often look better when scaled to different resolutions than raster based graphics also scaled. It is almost always true that a equivalent vector graphic will look better when scaled up dramatically than a raster based graphic. This

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For the record, this is largely correct. NTSC DVDs must play on standard NTSC TVs, which can only handle 29.97 fps. Therefore, 29.97 fps is the only allowed "display" frame rate. It's true that the spec explicitly refers to 23.976 framerate, but this is largely because it's the most common framerate

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Understanding the method behind 3:2 pulldown is completely unnecessary to "understanding how video assets are prepared and authored for DVD" for anybody but professionals. Exactly 0% of consumer DVD-oriented MPEG-2 encoders or DVD-Video authoring programs require an understanding of 3:2 pulldown in

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There is a dearth of information on the subject of Jacket Picture. While basic information about file names can be found (e.g. on the German Knowledge page for DVD-Video) there is little information telling users who is using the Jacket Picture and how. If someone can find a web site showing that

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Also, how does it make sense to say that the typical 24 fps recorded material that is played with 25 fps on a PAL DVD is interlaced? 25 progressive frames are shown per second if the original material was film or (modern) television series. Only live-recorded concerts or similar that make in to DVD

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The original poster has left out that this is Variable Bit Rate. The variable bit rate is 32 kbps to 912 kbps, with 384 kbps being the normal average rate. The 912 kbps are probably transient peaks that you would not hear. MPEG-1 is limited to 384 kbps. Channel combinations are (front/surround):

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The secondary considerations can outweigh the primary consideration of which looks better if the additional cost for the "better" looking picture is high enough. These secondary considerations include the resources that are used by serving the image. The SVG image has to be rendered to PNG at the

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Does that second sentence make sense? Number one: it's a fragment sentence, number two: what is it talking about? The previous sentence looks like it's just listing the usual bitrate for professional production just in case someone is wondering. Maybe this sentence is referring to the bit about the

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The MPEG-2 spec was developed and finalized before Book B was. Yes, the frame flags were designed in part to allow 3:2 pulldown, but they have other uses as well, including allowing framerates other than 23.976 to be pulled down to something close to 480i60 on a DVD. This isn't just theory, it is

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I certainly don't disagree, Dcsutherland claimed a PAL - NTSC difference. It is, however, completely wrong that DVD's are always encoded interlaced. MPEG-2 video can either be encoded in fields (interlaced) or in frames (which can be interlaced or progressive). Fields encoding is so unusual (There

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The successors section reads like it was written by someone who doesn't like Blu-ray and wants it to fail somehow. Like it or not, Blu-ray won the format war by a significant margin. And despite the people who try to marginalize it, Blu-ray has actually been beating various of DVD's records for

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The overriding consideration is choosing a graphic that looks good on the page which is compatible with all browsers (or at least the vast majority). Of secondary consideration is that the image should not require paying an exorbitant penalty (usually bandwidth, but can be other things, e.g. CPU

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I remember reading that, in the early years of DVD drives, computers were not fast enough to handle the decoding of the MPEG-2 on DVD discs, and so pass-through video cards were developed to help take some of the work of decoding MPEG-2 off of the CPU and video card. Though as video card and CPU

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Since you seem to have at least allowed the article to acknowledge that 480p24 must be effectively converted to 29.97 before it can be authored to DVD (which is far less ambiguous), and since you seem to have something of a chip on your shoulder regarding this article, I won't push the issue any

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As I understand it, the (slight) majority of PAL discs are dual layer. It's usually mentioned on the back cover. Most of my experience comes from Nordic editions (2x original-language audio, 4x subtitles, menus unlocalised or frugal if localised). A reference I googled says dual-layer discs are

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The DVD specification does not permit a display framerate of 23.976 -- that isn't NTSC or PAL, it's 480p24, which is incompatible with an NTSC signal. By manipulating the RFF and TFF flags in the MPEG-2 video stream, you can trick the decoder into performing a 3:2 pulldown and converting video

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I think this article should also reflect both the minimum audio/video bitrates dictacted by the official DVD standard and a notation on reasonable minimum values that is expected to work on most playback devices. I have not been able to figure this out myself, which is why i ask here instead of

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A misleading response. There are various 'flavours' of Universal Disc Format, some of which are designed to support drag-and-drop writing on computer systems and some of which are not. The version used for authoring DVDs is not capable of drag-and-drop use in its native form, but there is a

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Another common misconception. Unlike newer resolution specifications, DVD-based resolutions use what could be called "odd" resolutions that are subsequently stretched during playback to the appropriate shape. 720x480 can either be "squashed" to approximate 640x480 (4:3) or "stretched" to

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also has no sources for this statement. Given that this feature only activates on video DVDs and its name is 'RipLock', this needs clarified. I'll source my 'only activates on video DVDs' statement later: I'm at work so I don't really want to search the web for anti-piracy technologies.

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not be the best. On the other hand, the larger file might be better due to having much more information. The particularly small size of the PNG image at a high resolution is indicative that PNG might be a good format for the image. Put together, a closer look should be taken at the

779:"Professionally encoded videos average a bitrate of 3.5 Mbit/s with a maximum of 7-8 Mbit/s in high action scenes. Although this is typically done to enable greater compatibility amongst players, and to help prevent buffer underrun in the case of a dirty or scratched disc." 1637:

There is a rendering error (caused by the RSVG engine used by Knowledge, not in the original file) which almost connects South America to Cuba and significantly distorts that island chain. The SVG render greatly exaggerates the relative size of some islands and island

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Given that the "better" (smaller) format depends on the resolution on the page, choosing one or the other based on this criteria would require us to "lock" the size at which the graphic is displayed in the future. Obviously we don't want to, and can not reasonably, do

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accomidate 3:2 pulldown in DVD-Video and to remove the need for the DVD player to intelligently perform the process, as was the case with VCD and SVCD. One of the specified goals of the DVD-Video spec was to store 23.976 fps video accurately. Again, regardless of the

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The text also seems to conveniently ignore the (bothersome) fact of region coding (no need to include languages that are not part of the target region), markets smaller than a region, and that multi-language releases are more expensive and slower to co-ordinate.

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technology evolved tremendously during that time period (we went from 200Mhz processors to 1Ghz in a three-year time span, and from 16MB to 128MB video cards in the same span), these cards quickly became obsolete. I think this warrants a mention in the article.

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Hi, I've added a couple of citations about the arrest and legal wrangle over DeCSS. The other statement that needs citation is one about "the vast majority of DVDs using AC-3" (rather than DTS). Anyone got any numbers, stats, sales figs we can point to?

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Another resource is the bandwidth used to get the resulting images to the destination display. With these images the relative bandwidth consumed varies based on the resolution that is desired. 300 pixel resolution is currently used on this page.

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page claims that Hollywood authors movies on DVD at 24 frames per second. This seems like a direct factual conflict. Neither article has much in the way of references (but I haven’t tagged them as such quite yet). If anybody knows the answer

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Where did this come from? I don't see a citation or source. My own personal observations disagree with the statement, because my DVDs seem to hover around 5 Megabits/second, and that's why I'm wondering where this statistic came from. -

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This is not only true of Asian DVDs, it's also the case with European (or certainly British) ones which have on average 3 and sometimes many more language options for their soundtracks and many more for their subtitles.

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My comments were entirely justified in light of your initial uncivil behavior. Quoting Wiki policy and etiquette to me isn't really helpful, as you yourself are in direct violation of it and risk getting banned.

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rate of adoption by the public. Whereas this section reads like Blu-ray is an anemic and failed attempt to replace DVD. That's rather misleading and does not represent what's happening out in the real world.

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Could someone please write about the pixel aspect ratio of 1.1:1 in PAL/4:3 and 1.xx:1 in PAL/16:9... It's an important aspect if you design an image for a DVD and you want all the circles to be round. THANKS --

520:. Ideally the word "professional" should be removed or the article should contain an explication how was the word meant. I am not a native speaker of English so other participants to this discussion are welcome. 1930:

Currently it says: 4 hours. This is actually longer than I thought, I always figured above 180 minutes it's pushing it. Is there any official (yet public) information or guideline on max runtime / min bitrate?

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without further explication? I believe that DVD-Video can be used for low-quality video but not for the common professional usage. Could you please provide some examples of professional applications? --

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variation to it which does allow this function. Thus both authored (and closed) DVDs and drag-and-drop DVDs nominally seem to use the same format (usually UDF 2.0), but it isn't quite the same.

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Thanks for making this a new article. I was wondering whether there was a specific tag for an unfinished article as this? It does not have a lot of the basic things, like a heading and such. --

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1/0, 2/0, 2/1, 2/2, 3/0, 3/1, 3/2, and 5/2. The LFE channel is optional with all combinations. The 7.1 channel format adds left-center and right-center channels, but is rare for home use.

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This article completely lacks any historical background on DVD video. I will try to research this and add it, but it really needs something besides a factoid of when it eclipsed VHS. -

345:. (Hence why it is not directly mentioned in the article. Yet, anyway) There isn't really anything you can say about maximum run-time that is verifiable or neutral, really. -- 785:

raw dvd bitrate. You guys think it should be moved or edited or something? I think this paragraph and the previous one might have been one run-on sentence that someone split up.

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evidence to support that. As for the audio bitrate, I believe the page lists the acceptable bitrates for each codec, save for the AC-3 codec. (which I myself am not sure of) --

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Due to multiple audio (and video) output sources, a consumer has many outputs on a DVD player, and may become confused with connecting their player to their TV and/or amplifier.

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The secondary considerations are just that: secondary. We should be discussing which picture we want on the page based on what looks better irregardless of the format.

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I don't like the colors used for region 1 and 6 in the SVG (although I don't really like the color for region 6 in the PNG either and region 3 is hard to see... hmmm.).

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It is overcomplicated in that it is essentially a how-to littered with specialist information that the casual reader is unlikely to care about or even understand, and

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3 languages and on average 4 (Cantonese, Mandarin, Thai, and Japanese, sometimes with Mongolian or Farsi as well) for audio alone; along with a half dozen subtitles.

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from film. MPEG field flags can actually be used a handle a variety of source frame rates such as 24.0 fps, 25 fps, 15 fps, etc., each with its own pulldown cadence.

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Mostly I object to an automatic assumption that a Scalable Vector Graphics (SVG) image is better, just because it is SVG. While a vector graphic based format is

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Simply summed up: DVD-Video is a format designed (mainly) for consumer or home equipment (like VHS) thus I would not say that it is a professional format. --

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which suggests that "Tropical Rainforest", "Africa: The Serengeti", "Antartica", and "Animation Greats" were the first titles to be released by distributor

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I agree. I don't know of any laws for region coding. I will revise the section to refer to the CSS license, which is what is used to enforce region coding.

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What laws, or is the effect accomplished by licensing agreements? It seems hard to believe congress has the authority to regulate something like this.

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was the first TV series released as a DVD set, but don't have any corroborating references for this (even the X-Files article doesn't mention it).

608:. Personal insults (like calling me an idiot as you did above) will only get you banned. They lend nothing towards furthering your argument. -- 317: 1902:

chapter says: "MPEG-2 formats support both interlaced and progressive-scan content, with the latter being encoded within interlaced stream using

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You should NOT write opinions to dictionary, because not all DVD users are americans and being confused with anything requiring common sense!

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lower bitrate limit of 300kb/s ~ 600kb/s due to the hardware restrictions of most DVD players, but that is not part of the DVD-Video standard

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DVD is digital, hence it is neither PAL nor NTSC. It is 4:2:0 both for 50Hz and for 60Hz flavor. It is DV which is 4:1:1 (50Hz DV is 4:2:0)

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I heard that the first release was Evita. Could they have been released the same day? Or did different regions get different first releases?

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order to properly encode 23.976 fps video. At most, they require you to select "3:2 pulldown" from a checkbox list or dropdown menu.

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is a professional format although it is (or was) used in the same "professional" areas as DVD-Video. Here is an analogous example on

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When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

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PAL is said to be 4:1:1 while NTSC 4:2:0 -- good point though -- we need sources a link to MPEG to explain the pros and cons of it.

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There's no information about the various types of DVD packaging (Keep Cases, Snapper Cases, Steelbooks etc.) in this article.

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Arccos is not part of the DVD-Video standard, and there are other anti-rip alternatives, so I have made changes accordingly.

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I was trying to calculate the maximum video run-time with MPEG-2, but statements like "Up to 9.8 Mbit/s" are not sufficient.

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First DVD release was Cutthroat Island in Korea. I worked for WB's disc authoring team in 1999 and they told me flat out.

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Laws in the United States specifically prohibit the domestic sale of DVD players which are not set to Region 1 by default.

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https://web.archive.org/web/20080226130428/http://www.sonic.com/products/Consumer/CinePlayer/Technology/variability.aspx

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video software that didn't exist (or were rare) on tape, like box sets and TV series anthologies. I've heard that

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Are you sure of the quoted bitrate for MP2 Audio: MP2: 48 kHz sampling rate, 1 to 7.1 channels, up to 912 kbit/s?

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to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the

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The manipulation of the RFF and TFF flags, as you put it, was a deliberate design choice in the MPEG-2 spec to

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I agree. There is no information about the development of the technology; there's a lot of this in the main

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For this reason, many discs are made with at most two audio languages to allow single-layer discs to be used.

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Let me suggest that the obvious place for instruction-manual-level material is a wikibook. Specifically, the

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The statement that RipLock 'inadvertently reduces ripping speeds' needs a source. The Knowledge article on

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actually done. 23.976 is NOT the only progressive framerate that can be used when preparing an NTSC dvd.

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If you have discovered URLs which were erroneously considered dead by the bot, you can report them with

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Whoever wrote that DVDs don't often have more than one or two languages has never bought an Asian DVD.

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preferred for graphics (i.e. not photo pictures) which will be seen at multiple resolutions, it is not

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Nowhere in the article doea it tell us what the colour format is. Is it 4:2:2, 4:2:0, 4:1:1 or what?

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How many bits are used to represent each pixel's RGB + luminance values on the screen? 32? 24? -

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http://www.hometheaterhifi.com/the-dvd-benchmark/177-dvd-benchmark-part-5-progressive-scan-dvd.html

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on Knowledge. If you would like to participate, please visit the project page, where you can join

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before doing mass systematic removals. This message is updated dynamically through the template

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What was the first major movie or video to forgo a VHS release and only be availible on DVD?

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is misleading. I have never encountered the word in a similar meaning. I would never say that

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I just must say that the colours in the original PNG were a little bit better harmonised.

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I'm glad that you have such unique insight into the "casual" reader. This article is a

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limit due to player compatibility seems to be between 300 and 600 kbps, but there's no

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There is no official limit in the specification for maximum movie length. There is an

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If you found an error with any archives or the URLs themselves, you can fix them with

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High quality Video DVDs come with 8Mbps video rate and low ones with 3Mbps and the

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NTSC disc simply because you've decided it's 'technical' is arrogant and absurd.

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This page only mentions 25 and 29.97 frames per second as valid encodings. The

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The actual information displayed in the SVG is smaller (too much white space).

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the only acceptable framerate for NTSC. This is not a matter open for debate.

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http://www.sonic.com/products/Consumer/CinePlayer/Technology/variability.aspx

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farther. I will, however, respond to a couple specific things you said:

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I also find it strange that this is not in the article. According to

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In almost all cases, 12 bits, as the video is YV12 format, not RGB. —

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Here are the two pictures both at the current 300 pixel resolution:

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At 500 pixel resolution the rasterized SVG is larger by 17,369 bytes

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At 450 pixel resolution the rasterized SVG is larger by 3,330 bytes

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format. If this bot is in error, you may leave a bug report at its

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http://en.wikipedia.org/DVD-Video#Frame_rate_and_other_requirements

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At 300 pixel resolution the rasterized SVG is smaller by 461 bytes

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NTSC DVD horitzontal resolution should be 640 instead of 720 (?).

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acceptable framerate for NTSC video is 29.97. Regardless of the

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Just for comparison of the sizes of the images in the web page

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It is misleading in that the initial sentence implies that the

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Mid-importance Broadcast engineering and technology articles

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UDF is for drag-and-drop writing files to DVD-RW or DVD+RW !

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The only mention I have been able to find is a post in the

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I agree that it is inaccurate, more like 5 Mbit/s or so. --

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for additional information. I made the following changes:

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Officially, DVD-Video has no minimum video bitrate. The

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Broadcast engineering and technology task force articles

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This bot has detected that this page contains an image,

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Dallas, Philadelphia, Portland, Richmond, San Francisco

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I edited the SVG file to remove most of my objections.

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B-Class Broadcast engineering and technology articles

85:, a collaborative effort to improve the coverage of 1997:using the archive tool instructions below. Editors 267:

the Broadcast engineering and technology task force

1883:, please fix the article(s) and/or add citations. 1426:transparently. I am going to replace the images. 1596: 1450:The current image (rasterised SVG) has 27,52 KB 212:. To improve this article, please refer to the 1983:This message was posted before February 2018. 578:, most video on NTSC DVDs is stored at 23.976. 1855:information it would be wonderful to add it. 1447:The original image (resized PNG) had 27,97 KB 8: 1096:The first DVD release was Twister. Source: 828:multiple languages & NTSC-centric view? 1953:I have just modified one external link on 1552: 1168: 414: 144: 47: 1724:I will probably edit this in the Article. 516:noise reduction systems. Please see also 1377:format. A replacement is available as a 436:DVD-Video is a professional video format 1602: 146: 49: 19: 1599: 1194:Which file system does DVD-Video use? 1175:2600:1700:4A80:960:2905:DA9F:A766:ECE7 583:Knowledge is not an instruction manual 2064:this line should just be taken away. 1910:I will add this link as a reference. 1474:tend to indicate that the larger one 7: 1926:Max runtime DVD9? (AKA min bitrate)? 421:2001:D08:C4:531F:9440:FD26:1233:2A9C 198:This article is within the scope of 79:This article is within the scope of 1900:DVD-Video#Frame_size_and_frame_rate 434:Why the first sentence states that 38:It is of interest to the following 2128:Low-importance television articles 14: 2113:Low-importance Computing articles 1957:. Please take a moment to review 1600:Which looks better to you(vote)? 1579:DVD region codes across the world 1569:DVD region codes across the world 1442:http://en.wikipedia.org/DVD-Video 773:Frame rate and other requirements 933:Average Bitrate == 3.5 Mbit/sec? 743:Concerning this sentence in the 480:I think that this usage of term 359:23:13, 12 December 2006 (UTC+1) 222:Knowledge:WikiProject Television 185: 175: 148: 72: 51: 20: 2148:WikiProject Television articles 1383:File:DVD-Regions with key-2.svg 242:This article has been rated as 225:Template:WikiProject Television 127:This article has been rated as 107:Knowledge:WikiProject Computing 2094:18:11, 23 September 2022 (UTC) 1734:09:59, 22 September 2019 (UTC) 1716:11:57, 15 September 2009 (UTC) 1704:Shouldn't this be 192 Kbit/s? 1371:Image:DVD-Regions_with_key.png 1361:Image:DVD-Regions_with_key.png 504:noise reduction systems while 110:Template:WikiProject Computing 1: 1941:23:58, 21 December 2017 (UTC) 1920:20:57, 7 September 2011 (UTC) 1649:01:35, 19 February 2010 (UTC) 1612:01:35, 19 February 2010 (UTC) 1530:01:35, 19 February 2010 (UTC) 1465:09:48, 16 February 2010 (UTC) 1436:09:35, 16 February 2010 (UTC) 1421:10:51, 15 February 2010 (UTC) 1354:11:25, 13 February 2009 (UTC) 1204:08:49, 18 February 2008 (UTC) 1086:12:16, 10 November 2007 (UTC) 1015:21:31, 16 February 2008 (UTC) 956:13:47, 7 September 2007 (UTC) 946:17:45, 6 September 2007 (UTC) 927:23:22, 14 November 2007 (UTC) 905:17:38, 6 September 2007 (UTC) 890:13:21, 30 November 2009 (UTC) 490:Dolby noise reduction systems 369:05:53, 15 December 2006 (UTC) 305:16:21, 11 November 2006 (UTC) 264:This article is supported by 101:and see a list of open tasks. 2051:22:45, 11 January 2018 (UTC) 1562: 1554: 1268:14:46, 24 January 2011 (UTC) 996:09:10, 7 December 2007 (UTC) 976:09:10, 7 December 2007 (UTC) 865:Most of the DVDs I buy have 843:(under "Compression ratio") 840:prevalent in Australia, too 403:18:04, 11 January 2007 (UTC) 385:10:03, 11 January 2007 (UTC) 350:09:32, 6 December 2006 (UTC) 330:22:57, 5 December 2006 (UTC) 2123:B-Class television articles 1338:Someone, rephrase please. 1318:15:54, 20 August 2008 (UTC) 1229:"for computer data storage" 1183:22:46, 24 August 2020 (UTC) 733:00:55, 8 October 2014 (UTC) 380:posting the info directly. 2164: 2108:B-Class Computing articles 2014:(last update: 5 June 2024) 1950:Hello fellow Wikipedians, 1893:04:05, 30 March 2011 (UTC) 1667:20:14, 11 March 2010 (UTC) 1403:10:35, 26 April 2009 (UTC) 1109:11:59, 26 March 2008 (UTC) 1038:18:22, 30 March 2009 (UTC) 874:08:58, 4 August 2007 (UTC) 635:21:19, 31 March 2007 (UTC) 604:Your comments are grossly 563:10:39, 31 March 2007 (UTC) 443:15:02, 30 March 2007 (UTC) 429:00:55, 13 April 2024 (UTC) 248:project's importance scale 133:project's importance scale 2074:08:16, 12 June 2018 (UTC) 1825:10:57, 15 July 2010 (UTC) 1810:10:53, 15 July 2010 (UTC) 1795:05:47, 15 July 2010 (UTC) 1771:PAL is certainly 4:2:0 -- 1595: 1558: 1555: 1551: 1293:01:31, 18 June 2008 (UTC) 1245:19:17, 23 July 2010 (UTC) 1163:19:14, 23 July 2010 (UTC) 1144:18:32, 24 June 2011 (UTC) 1063:15:18, 23 July 2007 (UTC) 1001:No historical information 852:21:34, 20 July 2007 (UTC) 823:11:24, 23 July 2012 (UTC) 804:09:57, 18 July 2007 (UTC) 790:09:47, 14 June 2007 (UTC) 767:07:53, 9 April 2007 (UTC) 757:13:20, 5 April 2007 (UTC) 711:09:53, 18 July 2007 (UTC) 699:05:51, 1 April 2007 (UTC) 543:19:21, 23 July 2010 (UTC) 528:08:44, 2 April 2007 (UTC) 475:02:19, 1 April 2007 (UTC) 409:Professional video format 310:Details of specifications 263: 241: 170: 126: 67: 46: 1865:02:33, 7 July 2010 (UTC) 1845:23:19, 30 May 2010 (UTC) 1781:10:07, 7 July 2010 (UTC) 1767:02:31, 7 July 2010 (UTC) 1753:17:13, 29 May 2010 (UTC) 1593: 1549: 1222:17:13, 18 May 2009 (UTC) 1946:External links modified 1379:Scalable vector graphic 1052:http://standartdvd.com/ 2118:All Computing articles 1580: 1570: 1540:Vote for which picture 1333: 1226:No! From that article: 1075:film-talk.com's forums 966:rest is in between -- 782: 533:cinematic retail ? -- 518:professional#Equipment 260: 201:WikiProject Television 95:information technology 28:This article is rated 1697:MP2 Audio Max Bitrate 1578: 1568: 1327: 1210:Universal Disk Format 776: 320:comment was added by 259: 216:for the type of work. 82:WikiProject Computing 1995:regular verification 1881:and can cite sources 1815:can be interlaced.-- 1985:After February 2018 1870:DVDs: 24fps or not? 1324:Confused consumers? 981:Pixel aspect ratios 492:: I would say that 228:television articles 210:join the discussion 206:television programs 2039:InternetArchiveBot 1990:InternetArchiveBot 1581: 1571: 261: 113:Computing articles 34:content assessment 2015: 1830:POV about Blu-ray 1817:Regression Tester 1802:Regression Tester 1773:Regression Tester 1621: 1620: 1617: 1616: 1589: 1588: 1585: 1584: 1344:comment added by 1320: 1308:comment added by 1185: 1173:comment added by 1134:comment added by 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