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Member You - A Short Guide to Video Projectors: Business vs Home Theater Projectors
Recently I attended a Boy Scout Leader Roundtable meeting where they held a Pressurized Fuel Training session. The focus of this training was to teach leaders what they should be teaching boy scouts about safety rules for using primarily cooking stoves, but also lanterns and heaters that use propane or liquid fuels under pressure. The point was not at all to teach how to use these devices, but was purely about safety.The point of this article is not to discuss the specifics of the safety rules. I'm sure you can find them elsewhere on-line, and frankly a lot of it was common sense (like reading the manual that came with the device you are using and following their instructions). The point of this article is to offer answers to the following questions that came up in my mind during this training: 1) If there are so many safety issues with pressurized fuel, why use it? and 2) What are the alternatives?The answer to the first question has to do with the BSA and other organizations adopting the Leave No Trace philosophy. I won't go into all the details on this either, but suffice to say that Leave No Trace is an environmentalist movement which among other things discourages the use (or over-use) of wood found in the wild for campfires or for building camp furniture, etc.This is somewhat at odds with the old tradition of scouting which is closely linked with the woodcraft movement of the early 20th century. This oft misunderstood social movement heartily encouraged people to get out of the over-crowded cities and re-discover the joys of primitive outdoor
Most business-oriented projectors weigh just a few pounds - some very light business models weigh no more than three pounds! These video projectors usually come with carrying cases and wireless remote controls that enable the user to control not only the projector, but also to send commands to the PC through appropriate connectivity. Some remotes include an integrated laser pointer.
Most multimedia projectors under this category come with a small integrated speaker for the sound; more expensive projectors have security features such as locking cables, etc.
Portability issue is of no concern in the home theater. One would normally setup a fixed place for the projector. For home theater projectors, the best installation spot is on the ceiling. This means that some planning has to go into how it is best to run cables into the ceiling to connect your projector with the rest of your home theater gear.
Video Projector Connectivity
It is critical that your video projector comes equipped with the appropriate inputs to enable you to connect with your PC or laptop in the case of a business projector, and home theater gear, DVD, or HDTV set-top-box in the case of a home theater projector.
It is clear that connectivity requirements between these t
Debt collection letters--an overview“Debt collection letter” in the singular may be an oxymoron, since unfortunately, one is rarely enough. You should have a series of letters to send to deadbeat clients, each one becoming a little more insistent. Here are some ideas for a five-letter series.Don’t make your first letter look like a collection letter at all. Make it a friendly note. You’re more likely to get money from someone who thinks of you as a partner than a dun.If that first letter doesn’t get a response--and usually it won’t--send another the next week that’s more urgent and directly asks for the money. Express your concern that you have not been able to contact the client. Ask if he or she is all right, and if he or she is having any trouble paying. The next week, if you still have not gotten a response, send a letter referring to the payment terms in the agreement you and the client originally made (you did have some kind of written agreement, even if it was just on the back of your invoice, right?). Mention the effect this nonpayment is having on your cash flow, and that your business’s cash flow is just as important as theirs.Still no response by the next week? State plainly that you are asking for the money for the final time before referring it to collections. Include a copy of the entire agreement between you and the client.If you still have not heard back from the client, and are confident that you do not simply have a problem with their contact information, call a collection agency—in fact, you may have wanted to have gotten a
The fall in price and the developments in video projection technology we have experienced during these last few years, have made the digital projector even more accessible to a larger group of home users.
Demand has increased to such an extent that manufactures are not only producing what are referred to as 'cross-over' models - i.e. projectors that can handle both PowerPoint presentations in the office as well as DVD movies at home, but they have also started to target the home entertainment domain by producing models specifically designed for home theater use. ...why?
It is true that 'cross-over' projectors can handle both worlds, but this does not mean that a video projector that can deliver a great presentation in the boardroom is also capable of delivering a great cinematic experience in the home theater.
Home theater projectors and business projectors have to fulfill distinct requirements in their use which can only be met if the video projector is specifically designed for the purpose.
What characteristics differentiate Business Video Projectors from Home Theater Projectors?
It is no surprise that video projectors are becoming a popular choice with many home theater enthusiasts. The digital projector can deliver the largest image for your dollar. Simply hook up your DVD and there you have the most cinema-like image in the home theater. Or connect a HDTV source such as a cable set-top box or satellite receiver, and there you have a huge 100" HDTV for the cost of a 50" plasma TV.
And in the boardroom, today's powerful digital multimedia projectors are proving to be more than ideal for business presentations; they are capable of delivering bright huge images under normal ambient room lighting - something only dreamt of in the days of the overhead projector. Simply plug in your laptop, and there you have the most fantastic business presentation in the world!
However, it is important to keep in mind that the boardroom and the home theater are two different arenas that require different beasts. The distinct requirements between the two are important; the discussion that follows explains what video projector attributes should apply in these two cases.
Important Projector Attributes
Brightness:
The brightness level (measured in lumens or ANSI-Lumens) is an indication of the level of light thrown out by the projector. Brightness is a lot more important for business use - this in view that many presentations are given in conference rooms with standard office lighting rather than in reduced ambient light. This means that the image needs to be bright enough to be seen, otherwise the projection would look washed out.
For small boardrooms and presentations with a lot of ambient light, a brightness of around 1000 to 1500 lumens should normally be fine. However, keep in mind that the projector brightness required depends on the projected screen size, the level of ambient light, and the projection screen gain (more on this in our projector screen guide).
For home theater applications, a high brightness level is not important. Some video projectors intended for home theater use come with bulb setting to enable the user to dim the light source for improved viewing and deeper blacks when viewing takes place in a darkened room.
Contrast:
As discussed in our Contrast Ratio article, even a minimal level of ambient light may render a high contrast image of say 5000:1 similar to one with a contrast ratio of 500:1. This means that though a minimum level of contrast is important for the eye to perceive a sufficient bright image, yet contrast is not an important attribute in business applications, nor it is in home use if one will be using the projector in the living room with the lights turned on.
In reality, anything above 400:1 for the contrast ratio would not be perceived by the eye if viewing does not take place in a completely darkened environment. In addition, due to the eye's contrast sensitivity function, a contrast ratio of say 2000:1 would not be perceived as five times better than one with a contrast ratio of 400:1. Therefore, pay more and go for a high contrast ratio only in the case of a home theater projector and as long as viewing takes place under controlled lighting.
Color, Gray-Scale Performance, and Smooth Video Playback:
These are all attributes that are more critical in home theater applications. In fact, color accuracy with natural-looking skin tones and capability to present subtle detail in bright and dark areas of the image matter more to the home user.
Similarly, the projector's ability to present smooth, video playback with no added motion artifacts, when presenting fast action sports and movie scenes, is of prime importance in any home theater application.
LCD or DLP:
It all depends. Strictly speaking, both technologies can do a good job in either of these applications in that advancement in technology has closed the gap between the two. Yet LCD projectors are normally the primary choice with business projectors in view that these still have a brightness edge over DLP.
On the other hand, DLP is still the favored technology when it comes to home theater use due to their improved black level performance and smoother looking projections that resembles more closely those at the movie theater.
Portability:
This is a major issue with the business video projector. Smaller and lighter is better, especially if you travel frequently. Weight is more of an issue for the business user. Business mobile professionals will want to hook up a lightweight projector to a computer or laptop, projecting an image on a large screen or wall for presentations.
Most business-oriented projectors weigh just a few pounds - some very light business models weigh no more than three pounds! These video projectors usually come with carrying cases and wireless remote controls that enable the user to control not only the projector, but also to send commands to the PC through appropriate connectivity. Some remotes include an integrated laser pointer.
Most multimedia projectors under this category come with a small integrated speaker for the sound; more expensive projectors have security features such as locking cables, etc.
Portability issue is of no concern in the home theater. One would normally setup a fixed place for the projector. For home theater projectors, the best installation spot is on the ceiling. This means that some planning has to go into how it is best to run cables into the ceiling to connect your projector with the rest of your home theater gear.
Video Projector Connectivity
It is critical that your video projector comes equipped with the appropriate inputs to enable you to connect with your PC or laptop in the case of a business projector, and home theater gear, DVD, or HDTV set-top-box in the case of a home theater projector.
It is clear that connectivity requirements between these tw
The word impotence is derived from the Latin word impotencia, which literally translated means lack of power. The oldest reference to impotence was made in the Samhita of Sushruta, around the eighth century BC in India. An attempt was made to describe the causes of the condition, suggesting at least four, i.e. voluntary, congenital, praecox and diseases of the genital organs. In fact, the ancient Hindus believed that impotence could also be of mental origin, from intercourse with a distasteful woman.Many interesting remedies were recommended within the Samhita, including eating the testes of a goat, either by boiling the testes in milk and adding sesame seeds and lard of a porpoise, or by mixing the testes with salt, powdered pepper fish and clarified butter. In Ancient Egypt, impotence was considered to be of two types: a natural cause where a 'man is incapable of accomplishing the sex act' and to have a supernatural element such that evil charms and spells could cause impotence. The Egyptian Papyrus Ebers, a medical Egyptian document dated 1600 BC, lists 811 prescriptions for various ailments, including impotence. In that, baby crocodiles' hearts were mixed with wood oil to the appropriate consistency, and this then be smeared into the husband's penis to restore his potency . Another remedy consisted of an oral combination of 37 substances. Only some of these have been identifiable: carob, juniper, pine, salt, various oils and watermelon.In Greek mythology impotence in adult life was caused by sexual anxiety in childhood. In one example, King Phylacus of Phylace
And in the boardroom, today's powerful digital multimedia projectors are proving to be more than ideal for business presentations; they are capable of delivering bright huge images under normal ambient room lighting - something only dreamt of in the days of the overhead projector. Simply plug in your laptop, and there you have the most fantastic business presentation in the world!
However, it is important to keep in mind that the boardroom and the home theater are two different arenas that require different beasts. The distinct requirements between the two are important; the discussion that follows explains what video projector attributes should apply in these two cases.
Important Projector Attributes
Brightness:
The brightness level (measured in lumens or ANSI-Lumens) is an indication of the level of light thrown out by the projector. Brightness is a lot more important for business use - this in view that many presentations are given in conference rooms with standard office lighting rather than in reduced ambient light. This means that the image needs to be bright enough to be seen, otherwise the projection would look washed out.
For small boardrooms and presentations with a lot of ambient light, a brightness of around 1000 to 1500 lumens should normally be fine. However, keep in mind that the projector brightness required depends on the projected screen size, the level of ambient light, and the projection screen gain (more on this in our projector screen guide).
For home theater applications, a high brightness level is not important. Some video projectors intended for home theater use come with bulb setting to enable the user to dim the light source for improved viewing and deeper blacks when viewing takes place in a darkened room.
Contrast:
As discussed in our Contrast Ratio article, even a minimal level of ambient light may render a high contrast image of say 5000:1 similar to one with a contrast ratio of 500:1. This means that though a minimum level of contrast is important for the eye to perceive a sufficient bright image, yet contrast is not an important attribute in business applications, nor it is in home use if one will be using the projector in the living room with the lights turned on.
In reality, anything above 400:1 for the contrast ratio would not be perceived by the eye if viewing does not take place in a completely darkened environment. In addition, due to the eye's contrast sensitivity function, a contrast ratio of say 2000:1 would not be perceived as five times better than one with a contrast ratio of 400:1. Therefore, pay more and go for a high contrast ratio only in the case of a home theater projector and as long as viewing takes place under controlled lighting.
Color, Gray-Scale Performance, and Smooth Video Playback:
These are all attributes that are more critical in home theater applications. In fact, color accuracy with natural-looking skin tones and capability to present subtle detail in bright and dark areas of the image matter more to the home user.
Similarly, the projector's ability to present smooth, video playback with no added motion artifacts, when presenting fast action sports and movie scenes, is of prime importance in any home theater application.
LCD or DLP:
It all depends. Strictly speaking, both technologies can do a good job in either of these applications in that advancement in technology has closed the gap between the two. Yet LCD projectors are normally the primary choice with business projectors in view that these still have a brightness edge over DLP.
On the other hand, DLP is still the favored technology when it comes to home theater use due to their improved black level performance and smoother looking projections that resembles more closely those at the movie theater.
Portability:
This is a major issue with the business video projector. Smaller and lighter is better, especially if you travel frequently. Weight is more of an issue for the business user. Business mobile professionals will want to hook up a lightweight projector to a computer or laptop, projecting an image on a large screen or wall for presentations.
Most business-oriented projectors weigh just a few pounds - some very light business models weigh no more than three pounds! These video projectors usually come with carrying cases and wireless remote controls that enable the user to control not only the projector, but also to send commands to the PC through appropriate connectivity. Some remotes include an integrated laser pointer.
Most multimedia projectors under this category come with a small integrated speaker for the sound; more expensive projectors have security features such as locking cables, etc.
Portability issue is of no concern in the home theater. One would normally setup a fixed place for the projector. For home theater projectors, the best installation spot is on the ceiling. This means that some planning has to go into how it is best to run cables into the ceiling to connect your projector with the rest of your home theater gear.
Video Projector Connectivity
It is critical that your video projector comes equipped with the appropriate inputs to enable you to connect with your PC or laptop in the case of a business projector, and home theater gear, DVD, or HDTV set-top-box in the case of a home theater projector.
It is clear that connectivity requirements between these t
So, you've got this great squeeze page sitting out there in cyberworld, and it's all ready for list building in your particular niche. But think about this: At last count, Google indexed something like 8 billion pages! With all that competition for eyeballs, will your site ever be seen?You need traffic.One way, a really great way to get people to your list building page, is by writing articles, and they're great for several reasons. First, when you have an article published, you get a certain "air of expertise," let's say.Plus, at the end of every article, or in some directories, you get to place links to your list building page or any other program you might be offering. You should concentrate on using a link to your list building page, though, until you've built an enormous list.The links in those articles stay around as long as the article does, pretty much forever. When people search Google or another search engine for "list building," they'll find my articles, whether it's now or several years from now.When you have articles distributed, other directories pick them up, so now you have this whole network of articles out there, with your list building link in it.One-way links are worth their weight in gold, and they're even better, if the page your article is on carries any page rank. That helps your page rank, too.You may be wondering, Where do I get ideas?That's easy! Ideas are all around you!Find a good blog in your niche. Go check out other sites. Read newsletters and forums in your niche. Those should jog you
For home theater applications, a high brightness level is not important. Some video projectors intended for home theater use come with bulb setting to enable the user to dim the light source for improved viewing and deeper blacks when viewing takes place in a darkened room.
Contrast:
As discussed in our Contrast Ratio article, even a minimal level of ambient light may render a high contrast image of say 5000:1 similar to one with a contrast ratio of 500:1. This means that though a minimum level of contrast is important for the eye to perceive a sufficient bright image, yet contrast is not an important attribute in business applications, nor it is in home use if one will be using the projector in the living room with the lights turned on.
In reality, anything above 400:1 for the contrast ratio would not be perceived by the eye if viewing does not take place in a completely darkened environment. In addition, due to the eye's contrast sensitivity function, a contrast ratio of say 2000:1 would not be perceived as five times better than one with a contrast ratio of 400:1. Therefore, pay more and go for a high contrast ratio only in the case of a home theater projector and as long as viewing takes place under controlled lighting.
Color, Gray-Scale Performance, and Smooth Video Playback:
These are all attributes that are more critical in home theater applications. In fact, color accuracy with natural-looking skin tones and capability to present subtle detail in bright and dark areas of the image matter more to the home user.
Similarly, the projector's ability to present smooth, video playback with no added motion artifacts, when presenting fast action sports and movie scenes, is of prime importance in any home theater application.
LCD or DLP:
It all depends. Strictly speaking, both technologies can do a good job in either of these applications in that advancement in technology has closed the gap between the two. Yet LCD projectors are normally the primary choice with business projectors in view that these still have a brightness edge over DLP.
On the other hand, DLP is still the favored technology when it comes to home theater use due to their improved black level performance and smoother looking projections that resembles more closely those at the movie theater.
Portability:
This is a major issue with the business video projector. Smaller and lighter is better, especially if you travel frequently. Weight is more of an issue for the business user. Business mobile professionals will want to hook up a lightweight projector to a computer or laptop, projecting an image on a large screen or wall for presentations.
Most business-oriented projectors weigh just a few pounds - some very light business models weigh no more than three pounds! These video projectors usually come with carrying cases and wireless remote controls that enable the user to control not only the projector, but also to send commands to the PC through appropriate connectivity. Some remotes include an integrated laser pointer.
Most multimedia projectors under this category come with a small integrated speaker for the sound; more expensive projectors have security features such as locking cables, etc.
Portability issue is of no concern in the home theater. One would normally setup a fixed place for the projector. For home theater projectors, the best installation spot is on the ceiling. This means that some planning has to go into how it is best to run cables into the ceiling to connect your projector with the rest of your home theater gear.
Video Projector Connectivity
It is critical that your video projector comes equipped with the appropriate inputs to enable you to connect with your PC or laptop in the case of a business projector, and home theater gear, DVD, or HDTV set-top-box in the case of a home theater projector.
It is clear that connectivity requirements between these t
“I never saw it coming, how did I get so fat” is what people all over the world are thinking. Lets do a little math to see how we all got fat.3500 is the magic number. If we take in 3500 more calories than our body needs, we will put on one pound of fat. How easy is this to do? Unfortunately it is very, very, easy. Lets say you currently are drinking only one soda a day and you have stayed the same weight for years. Then you discover a new better tasting soda and you want two sodas a day. That soda may have 100 calories in it. This means you just added an additional 100 calories to your diet than your body needs.Remember 3500 is the magic number and every time you add up to 3500 you just added a pound of fat. This means you will gain one pound of fat every 35 days just by adding 100 additional calories to your diet. That adds up to around 10 pounds a year!Now think about what happens if you suddenly started drinking two additional sodas a day. What about those big gulps that are the size of your head? I am not just picking on sodas. It could be one additional doughnut, cookie, or piece candy. Those little thinks add up.The good news is that that 3500 number also works the other way. Lets say you are drinking three sodas a day and you weight is stable. If you cut back to two sodas a day, assuming that is 100 calories, every 35 days you would lose one pound. That means you could possible lose 10 pounds a year, just by cutting back a little.Remember this the next time you that one extra cookie.--Please feel free to publish this artic
Color, Gray-Scale Performance, and Smooth Video Playback:
These are all attributes that are more critical in home theater applications. In fact, color accuracy with natural-looking skin tones and capability to present subtle detail in bright and dark areas of the image matter more to the home user.
Similarly, the projector's ability to present smooth, video playback with no added motion artifacts, when presenting fast action sports and movie scenes, is of prime importance in any home theater application.
LCD or DLP:
It all depends. Strictly speaking, both technologies can do a good job in either of these applications in that advancement in technology has closed the gap between the two. Yet LCD projectors are normally the primary choice with business projectors in view that these still have a brightness edge over DLP.
On the other hand, DLP is still the favored technology when it comes to home theater use due to their improved black level performance and smoother looking projections that resembles more closely those at the movie theater.
Portability:
This is a major issue with the business video projector. Smaller and lighter is better, especially if you travel frequently. Weight is more of an issue for the business user. Business mobile professionals will want to hook up a lightweight projector to a computer or laptop, projecting an image on a large screen or wall for presentations.
Most business-oriented projectors weigh just a few pounds - some very light business models weigh no more than three pounds! These video projectors usually come with carrying cases and wireless remote controls that enable the user to control not only the projector, but also to send commands to the PC through appropriate connectivity. Some remotes include an integrated laser pointer.
Most multimedia projectors under this category come with a small integrated speaker for the sound; more expensive projectors have security features such as locking cables, etc.
Portability issue is of no concern in the home theater. One would normally setup a fixed place for the projector. For home theater projectors, the best installation spot is on the ceiling. This means that some planning has to go into how it is best to run cables into the ceiling to connect your projector with the rest of your home theater gear.
Video Projector Connectivity
It is critical that your video projector comes equipped with the appropriate inputs to enable you to connect with your PC or laptop in the case of a business projector, and home theater gear, DVD, or HDTV set-top-box in the case of a home theater projector.
It is clear that connectivity requirements between these t
Just as you would never operate on yourself, you also should never attempt to represent yourself in a court of law. There are a number of lawyers across Iowa who specialize in bankruptcy cases that can help you understand the legal process behind filing and what implications it will have on your life. Often these lawyers will counsel with you at first to look at options other than filing for financial relief with the courts. Sometimes there are better solutions that filing and these attorneys will do what it takes to make sure you know all the choices available to you.In Iowa, there are certain laws which govern who may file for bankruptcy and under what circumstances. Lawyers who specialize in this field are constantly keeping up-to-date on the laws and how they relate to individual cases. Many times the law may change on a yearly basis and a skilled attorney will keep up on the changes so that they may bring expertise and value to their client both inside and outside the courtroom.Never be afraid to ask your attorney if there are any other options available to you besides filing for financial relief. Many times they will know of counseling programs and special payment relief programs that are available to help you get through a tough financial time without having to declare yourself bankrupt. Remember, a filing and relief judgment from the court will remain on your credit report for 10 years and seriously impact your ability to borrow money or get credit during that time period.
Most business-oriented projectors weigh just a few pounds - some very light business models weigh no more than three pounds! These video projectors usually come with carrying cases and wireless remote controls that enable the user to control not only the projector, but also to send commands to the PC through appropriate connectivity. Some remotes include an integrated laser pointer.
Most multimedia projectors under this category come with a small integrated speaker for the sound; more expensive projectors have security features such as locking cables, etc.
Portability issue is of no concern in the home theater. One would normally setup a fixed place for the projector. For home theater projectors, the best installation spot is on the ceiling. This means that some planning has to go into how it is best to run cables into the ceiling to connect your projector with the rest of your home theater gear.
Video Projector Connectivity
It is critical that your video projector comes equipped with the appropriate inputs to enable you to connect with your PC or laptop in the case of a business projector, and home theater gear, DVD, or HDTV set-top-box in the case of a home theater projector.
It is clear that connectivity requirements between these two video projector categories vary.
Most - but not all - models support component, composite, S-video, and RGB connectivity. Home theater projectors normally also include a DVI or an HDMI port; this is very useful when it comes to interconnecting with a compatible DVD player or HDTV set-top boxes.
One standard that is starting to show up more on video projectors, and that is most appropriate in the business arena, is the M1, EVC, or P&D standard; this is most commonly referred to as M1 or M1-DA.
The M1 connector allows for the same connectivity as DVI – digital single or dual link or analog transmissions in the case of DVI-I. But the added advantage of the M1 over DVI is that the M1 also provides connectivity to the USB or FireWire port on your PC. The USB/FireWire connection is used to supply commands from the projector's remote control to the computer - thus allowing you to scroll through PowerPoint presentations, etc.
Our advice: Always check before you buy to be sure that the projector has the inputs you need.
Projector Resolution: SVGA, XGA or Widescreen (WVGA or WXGA)?
This refers to the native or optical resolution and measures the level of picture detail that the projector can handle without compressing (down-scaling) the number of pixels in the original video content. Downscaling degrades picture quality and leads to picture content loss.
This is probably by far the most important video projector attribute that differentiate business from home theater projectors. In reality, it is not the number of pixels but rather how these are arranged on the screen in terms of width vs height i.e. the native aspect ratio of the projector. SXGA (1280x1024) is currently the highest resolution available for portable projectors; these video projectors are relatively very expensive. Most common video projector resolutions in the 4:3 aspect ratio are XGA (1024x768 pixels) and SVGA (800x600 pixels).
Widescreen versions of SVGA (WVGA: 854x480) and XGA (WXGA: 1280x720) have also started to emerge. These enable better projections of widescreen 16:9 content.
Business Video Projectors: SVGA and XGA projectors are more suited for business presentations, with the higher resolution XGA projectors being more capable of showing fine detail in your slide show.
Many may thing that the higher the resolution the better - but this does not necessary apply in the case of the business projector. A word of caution here arise out of the fact that if the text on a PowerPoint slide makes use of a too small a font to show using an SVGA projector (and therefore it necessitates the need of an XGA projector), it means that probably, the audience at the very back would still not be able to read it. Surely, you do not want that. In these circumstances, the cheaper SVGA projector would - in most circumstances - be able to do more than a good job.
On the other hand, the XGA projector is the best option for presentations that include graphics, software demonstrations, or full Web pages; this resolution also represents a better match for laptop computer displays.
Home Theater Projectors: If you want to use a video projector to project a huge image on a screen in your home theater, then the higher the resolution, the better since you will be less likely to suffer from pixelation issues. It is true that pixelation disappears as one moves further away from the screen but in the home theater, many would prefer to move a little bit closer for a wider angle of view and a more immersing movie experience.
Although most SVGA projectors can display HD images from your HD cable tuner or satellite, they don't have enough resolution to do it justice. The two main HD resolution formats are 1080i (1920 x 1080 pixels) and 720p (1280 x 720 pixels). SVGA projectors, with 800 x 600 pixels of resolution, don't have the ability to display either format without downscaling.
Even with DVD content - which at 852x480, comes with a lower resolution than HDTV - the lower-priced SVGA projectors cannot do a good job with DVD movies. XGA, on the other hand, gets much closer but...
Both standard SVGA and XGA projectors have a native aspect ratio of 4:3, so the image corresponds to a standard computer screen or regular television. Widescreen content - such as that available from DVDs and HDTV programming - have an aspect ratio of 16:9. The best way to match this is to use a home theater projector with a widescreen native resolution; it is only in this way that you can avoid the letterboxing, image stretching, or image cropping, or other aspect ratio management techniques that are often used to present a 16:9 content on a 4:3 screen.Widescreen projectors come in either WVGA or WXGA. Opting for the cheaper WVGA projector makes sense if you will be watching only DVD movies. For HDTV content, a WXGA projector is necessary. This will enable you to display all HDTV content up to 720p without re-scaling. You still will be able to see 1080i HDTV material on a WXGA projector but the projected image will have to be compressed to fit the 1920x1080 pixels in a 1080i or 1080p HDTV, in the available pixel field of a WXGA video projector.
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