720p Vs 1080i HDTV

Is 720p vs 1080i worth being concerned about? Yes and no. If you're a consumer looking for a new TV, you can happily ignore the 720p vs 1080i debate because every TV which is described as HDTV or HDTV Ready is required to support both formats.

NOTE: You should be aware though that lots of TVs which support 1080i have fewer than 1080 lines and so scale the 1080 signal down. That's not a huge issue as even scaled down 1080i is far ahead of a regular NTSC signal. It is worth bearing in mind that more expensive HDTVs tend to have better scalers than cheaper ones, and this may be an issue.

However, for broadcasters it's a live issue. Should they broadcast 1080 lines of interlaced video or 720 lines of progressive scan? They could just broadcast two signals, one in each format, but that would use up a huge chunk of bandwidth and be hugely expensive for very little gain.

To answer the question, it's important to understand the difference between 720p vs 1080i. A 720p signal is made up of 720 horizontal lines. Each frame is displayed in its entirety on-screen for 1/30th of a second. This is know as progressive scan (hence the 'p')The quality is like watching 30 photographic images a second on TV. A 1080i signal comprises 1080 horizontal lines but all the lines are not displayed on-screen simultaneously. Instead, they are interlaced (hence the 'i'), ie every other lines is displayed for 1/60th of a second and then the alternate lines are displayed for 1/60th of a second. So, the frame rate is still 30 frames per second, but each frame is split into two fields, which your brain then puts together subconsciously.

Most of the time interlacing works fine, but for fast moving images, such as sports like baseball and hockey it can cause problems which manifest themselves as a 'stepping' effect on-screen. Progressive scan signals don't have this problem and so are better suited to sports.

ESPN puts it like this: 'Progressive scan technology produces better images for the fast moving orientation of sports television. Simply put, with 104 mph fastballs in baseball and 120 mph shots on goal in hockey, the line-by-line basis of progressive scan technology better captures the inherent fast action of sports. For ESPN, progressive scan technology makes perfect sense.'

Bottom line? For us, as consumers 720p vs 1080i is not a debate worth worrying about, so you can relax and focus on all the other criteria on your list when you buy your next HDTV.

Kenny Hemphill is the editor and publisher of The HDTV Tuner - a guide to the kit, the technology and the programming on HDTV.

Do You Really Need A Portable DVD Player?

Have you ever been on a long boring bus or train raid just looking out through the window with out anything to do? Wouldn't it be nice to be able to watch your favourite's movies on your way to your destination instead? A portable DVD player allows you do just that. A portable DVD player is a small DVD player with a small screen attached to it allowing you to watch movies where ever you. Now you might be thinking so what, Portable DVD players are nothing new. That?s true but it's only in recent time that they have become inexpensive. Today almost everyone can afford a portable DVD player.

A portable DVD player plays regular DVD discs or Digital Video Discs. A DVD disc is 4.72 inches (120 mm) in diameter and can store 4.7 GB of data. They work in the same way as CD discs but utilize a shorter wavelength laser and can therefore store a lot more information on a disc than your standard CD.

Most Portable DVD players can read regular CDs as well but is still not suitable to replace your portable CD player. This is due to the fact that even if DVD players can read CDs they are specialised to handle video media and will as such not handle music as well as a unit specialised for musics. This does not need to be a problem and you might very well feel that the sound quality in a portable DVD player is good enough to use it as a CD player. You will however feel differently if you are a Sound snob. CD players can't play DVD discs since reading a DVD requires more advanced and sophisticated technique than the technique in a CD player.

One my wonder why portable DVD players hasn't been available at low prices for a long time when the technique used is similar to the technique used in CD players and portable CD players have been around forever. The answer is simple. A portable DVD player requires a large amount of miniaturization of technology to make it possible to fit so much into a small container. A portable DVD player does after all not only contain a DVD player but also a flat screen, all of which should fit into something that you can easily hold in one hand.

I mentioned earlier that portable DVD players today have become cheap enough to allow the average Joe to get one but does one actually need one. The simple answer is no. You could just bring a book or a deck of cards along with you on your trips which both would give you something to do on your trip and are considerable cheaper than a portable DVD player. A portable DVD player could however give you a lot of fun and a cheaper model could very well be worth considering since they can bring you some fun even though you don't actually need one. And sometimes one just feels like spoiling oneself with something one don't actually need. I know I do.

Read more information about portable DVD players. An alternative to a portable DVD player can be a DVD player software for your laptop.

Playing Music or Other CDs With a Code Free DVD

The technological jump has been instrumental in revolutionizing the entire home entertainment scenario. Region free DVD players ushered in a new era of change, which has impacted viewing and listening experience the world over.

Now we have all seen CDs. They are present literally everywhere. Our homes, workplaces, inside our computers and laptops, you name it and CDs are there. CDs are in fact similar to DVDs. One of the important things about DVDs is that they are able to store more data than CDs. A code free DVD can, to put it simply, hold around seven times the data that a CD could hold. This is the reason why a region free DVD can store a MPEG-2 encoded movie effortlessly, along with a lot of information.

From the time they hit the markets in 1997, DVDs and DVD players have become remarkably popular. A typical code free DVD can store up to 133 minutes of video. What is more when it comes to storing music also, code free DVDs have the edge over conventional CDs. A DVD can store around six to eight hours of music per side, with a significantly higher quality audio output than a CD.

A code free DVD comes to you with a host of features that you would not find with a VHS tape; the labeled on-screen index, for instance. You can now choose the part of the movie you want to see using your remote effortlessly. When it comes to the features available in region free DVD players, there are plenty. You have Dolby digital sound, surround sound, features for enhancing picture quality, and what not. Most of the region free DVD players are also compatible with audio CDs.

Code free DVDs are manufactured using the same methods as in the case of CDs. They work on the same principle of having ?pits? and ?bumps?. A code free DVD is made up of layers of plastic and is around 1.2 millimeters thick. A code free DVD is able to store more data than a CD, thanks to various reasons like having more area and a multi-layered storage facility. Code free DVD players have extremely sensitive components to read the equally sensitive and small region free DVDs. Region free DVD players have a ?MPEG- 2? decoder. This decoder can read compressed data and enables you to watch your favorite flicks.

Many movies are filmed at a rate of four frames per second. Most of the countries around the world like America or Japan have television sets that use the NTSC format, which enables 30 frames per second. Many European countries like Italy, France, Greece, UK, and Spain use the PAL format, with a display speed of 50 fields per second. It is because of these regional differences that a DVD player has to be formatted to be compatible with all or most of the systems. When it comes to the standards, as we have seen there are lots of standards like PAL, SECAM, NTSC, or PAL-SECAM, depending on the geographical location. These standards are subject to varying based on the location. Code free DVD players, however, enable you to play literally any DVD, whatever may be the region of its origin, and support most of or all of the standards. So they are called ?region free,? ?code free? or ?zone free? players.

Modern code free DVD players literally pack a punch and are great at decoding different formats to give you a superior picture quality and an amazing audio output. Since region free DVD players are designed specifically for playing code free DVDs with some special features, many times you will find that even your PC is unable to play a DVD. The reason is the superior processing power of a code free DVD player, which gives it the edge over some computers.

One can find DVD audios flooding the market recently. Although DVD audio players meant to play only audio are rare to find, most of the code free DVD players can play DVD audio discs. The format of a DVD audio disc is different from that of a DVD video. Good code free DVD players have something known as ?digital to analog converter? (DAC) in them to play these discs. It is always recommended that you get a code free DVD player with a 192kHz/24-bit converter for superior audio quality.

The DVD audio quality is better than the conventional CDs. They also make for great recording, offering you better accuracy. One can get still enhanced sound quality on code free DVD players by connecting them to a home theater system, preferably with around five speakers. Also check out whether your system is ?Dolby digital ready.? If it is, you can have the ultimate movie experience - so great is the sound quality.

The principle on which a code free DVD player works is similar to that of a CD player. Laser beams hit the surface of the disc to read the ?pits? and ?bumps.? The video signal is then sent to a television set and the audio signal to the speakers, after being amplified by a decoder. Most of the region free DVD players play both movies and music CDs. Similarly, most of the modern day code free DVD players enable you to play recorded content in the form of CD-Rs, which you could have done using your computer. You have the latest code free audio DVD players which handle only audio discs.

Almost all good brands of code free DVD players will have standard features like decoders, Dolby digital decoders, surround sound, and many other things. If you are in the market for a code free DVD player, your options are plenty. You can choose from a wide range from leading names like Sony, Samsung, Aiwa, Apex , Thompson, to mention only a few. There are also a lot of smaller companies who can give you equally good region free DVD players. You can always go through referrals. They may be of great help.

You can also do a bit of research on the Internet and find literally hundreds of models of region free DVD players. The basic models would cost you about $30 - $70. Although they are termed as basic models, the latest models in this segment come with a host of features. Buy the ones with the progressive scan technology as they offer better video quality. If you are willing to splurge a little more than $100, then you can go in for the higher models, which would come to you with a host of other features. You can record with these models. If you are unwilling to let go of your good old VHS tapes, you can always go in for region free DVD player-VCR combos. You can get a good player for around $200.

If you?re an avid gamer, you might find satisfaction in DVD players with ?nuon? technology, the latest in the market. These players come with additional features, where you can attach a mouse or a joy stick, enabling you to play interactive games. These game stations could set you back by about $400. Leading brands like Samsung and Sony offer great models in this segment. If you want multi-disc players or ?juke boxes,? as they are popularly known for their ability to play both DVDs and CDs at the touch of a button, can go in for these models, which could cost you upwards of $400. And just in case you are one of those high-flying, jet-setting executives, you can always grab a portable model. You can get one of these models for up to $700 or even more, depending on the features.

Where to get REGION FREE DVD players/recorders. To prevent the latest movies from reaching countries where a film has not reached theaters yet, Hollywood studios imposed a block. This regional coding is a digital flag on the disc that tells the DVD player where a particular DVD comes from. This is supposed to prevent the disc from being used by an incompatible player in another country. A normal DVD player can only play discs designated for the player's own particular region. However, a codefree DVD player is a capable of playing DVD discs from anywhere around the world. A codefree DVD player can play DVD discs from all 6 regions and both standards, PAL and NTSC. That's every DVD movie on earth! PAL-NTSC 110-220 volts DVD/VCR Combos for use worldwide. CODEFREE DVD / PAL-NTSC VCR combos and MULTISTANDARD VCRs will play 100% all known DVD discs including FRENCH DVDs. You can buy region free and region free converting DVD players and region free DVD recorders from http://www.mindlogic.com in California. They give you a LIFETIME Warranty and ship worldwide. Tel.800-514-2984 or tel. 925-686-9945

They have more thank 140,000 consumer electronics including multisystem pal TVs such as plasma, LCD, DLP etc. They also have free standing video standards converters from Tenlab and converting PAL-SECAM,NTSC, PAL-N , PAL-M VCRs and much more.