HDMI vs DVI, which is the difference? Which is better? Are DVI and HDMI-compatible? And of course, after the elections, which would you choose? Differences (or lack there of), you may be surprised. Let's look at each of them to assess the differences.

Digital Visual Interface (DVI) is a digital standard, which in 1999 launched by the Digital Display Working Group (DDWG). It is designed primarily for the transport of uncompressed digital video data to a monitor.Originally, the screen is a computer screen, but DVI is now widely used for television. One of the main areas of confusion with DVI is the number of different connections available, which represent different functions. There are three main types of connection of DVI, DVI-D (digital only), DVI-A (analog) and DVI-I (digital and analog).

High-Definition Multimedia Interface (HDMI), published at the end of 2002, is an all-digital audio / video interface cantransfer of streams of uncompressed data corresponding to DVI. But HDMI can also do sound signals, in addition to video, and built-in HDCP, a digital rights management technology.

So what's the difference?
When you look at the differences between HDMI and DVI, we find that in fact have more in common than differences. They support both digital transmission, it is also based on similar characteristics, as is HDMIcomes from the DVI specifications. There are two important differences:
Process HDMI content protection called High Definition Content Protection (HDCP).
HDMI supports audio in addition to digital video. (DVI only supports digital video)

Are DVI and HDMI-compatible?
Compatible with HDMI-DVI? Since DVI is the predecessor to HDMI, DVI and HDMI are identical with regard to the video in question. Therefore, video backward compatibility exists. However, no DVIsupport for digital audio. For example, if you have a DVI connector and a major source of the HDMI connector on the screen, an HDMI to DVI cable, everything needed to view the video. A separate (TOSLINK or SPDIF) will be needed for digital audio.

A warning about the length of the cable
The HDMI specification does not define the maximum length of cable is not. HDMI 1.3 defined two categories of cables: Category 1 (standard or HDTV) and Category 2 (high-speedor greater than HDTV), irrespective or HDMI or DVI works well at distances of over 15 meters. If you need a cable longer than 10 meters that is considered to ensure high quality cables. Something bigger than 15 meters, some companies offer amplifiers, equalizers and repeaters that can bridge distances more to help.

Which should I use today?
If available, we recommend HDMI. Not because it is better than DVI, just becauseheavy industry because of the willingness HDMI HDCP digital rights management technology. But you can expect any difference when moving from DVI to HDMI, so if you have DVI, stick with it until the next standard comes around. A bit 'off topic, but nonetheless important, is that you might be able to get the same quality video using your existing connection components. A common mistake is that the components of HDTV-quality video, it is wrong to do so. Dependingsystem components, you can get the same or better results with a component connection then with an HDMI or DVI connection.

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