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Supra digital video cables are designed to run at high definition resolutions. Depending on the source resolution, the length of the cable and the receiving hardware, resolutions of 720p, 1080i, 1080p and now up to "4k" can be carried by the Supra HDMI and DVI cables, from sources such as set-top boxes, games consoles and 5" silver disc players.

In the UK, we now have High Definition TV channels available, from sources such as Freeview, FreeSat and Sky. Where an external digibox is used, a good quality HDMI cable is the best way to carry the HD signals (both video and sound) to your display.

If your display is more than say 2-3 metres away from your digibox, then it will be necessary to buy a longer cable which has been purpose designed to incur minimal losses over longer distances (most cheap cables are only available in short lengths, as they may not work over longer distances, due to limitations in the production process - it's easy to design a cable that will only be made into 1 metre lengths - designing a cable that can be used over 15, 20 or even 30 metres is a lot more difficult.

Various "games consoles" now support HDMI outputs, including the Sony Playstation and Microsoft XBox. Your supplier may provide a "standard" quality and length of HDMI cable - but YOU may need a longer cable to reach your display or projector.

Likewise, Blu-Ray and HD-DVD players are available which should output up to 1080p resolutions, once the film studios start issuing these discs.

More info on HDMI standards can be found here: HDMI website

Are you interested in getting the best quality from your HDMI or DVI source? Then be aware of the requirements for a good quality cable. Some cables cannot handle the high bandwidth expected of them and as such, cheaper lower quality cables may not work properly. Have a read of this which gives you some insight into the technical requirements, if carrying high res signals (Copyright Home Entertainment and Technology writer, Stephen Dawson).

For other interesting review stuff, please see here