The Difference between EDTV and HDTVWritten by Kenny Hemphill
Confused by EDTV vs HDTV? We don't blame you. The number of acronyms floating about with regard to digital TV is frightening. What's even more worrying is that very often they are used by people who have little or no knowledge about what they mean. If person selling you doesn't know difference between EDTV vs HDTV, how are customers supposed to decide which TV or projector to go for?
In our guide below, we've tried to distill technical info into as few words as possible and make it as straightforward to understand as we can.
To properly explain EDTV vs HDTV, we need to step back a bit. Traditional TV has 525 lines of video which are interlaced. Interlacing just means that every frame of video is split into two fields and each field is shown alternately. Although there are 525 lines in signal, only 480 lines contain video, so it is sometimes referred to as 480i (480 lines interlaced). This is known as Standard Definition TV, or SDTV. While this has worked well enough for fifty years, as TV sets have got bigger and projectors more popular, quality deficiencies have become increasingly apparent.
The ultimate answer to improving quality of image displayed on your TV is HDTV, however, as a step on road to HDTV, industry came up with Enhanced Definition TV, or EDTV. This system contains same 480 lines as SDTV, but they are progressive scan. Hence EDTV is also known as 480p. Progressive scanning just means that instead of splitting signal into two fields and showing half lines at a time, all 480 lines of video are shown at once. This results in a noticeable improvement in quality of video.
Should a HDMI DVD player be your next home theater purchase?Written by Kenny Hemphill
Thinking about getting an HDMI DVD player? Whether you've heard buzz surrounding latest generation of DVD players or have an HDTV and want a player to connect it to, information on this page will help.
HDMI stands for High Definition Multimedia Interface. Its standard connector for high definition TV and video kit and is a lossless, all-digital audio/ video interface which as well as supporting HD content also carries standard definition (SD) and enhanced definition (ED) video.
Deciding which HDMI DVD player to get is becoming more difficult as more and more devices arrive on market. Prices range from a very reasonable $200 or so for Toshiba SD-5970 to a couple of thousand dollars for devices at high-end.
The Toshiba HDMI DVD player, like other high definition players, up-converts DVD-Video content on regular DVD discs to either 720p or 1080i high definition resolution. As well as do everything you would expect of a DVD player, Toshiba SD-5970 has a couple of tricks up its sleeve. Its progressive scan output, when connected to an HDTV using HDMI connector, provides twice number of scan lines present on a normal DVD picture. This means higher resolution, sharper and flicker free images which have none of motion artifacts, such as stepping, often seen on less expensive DVD players.